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Bio 211 lymphatic
biology 211 lymphatic and immune system test 4 fall 2012
468
Biology
Undergraduate 2
11/13/2012

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Term
what is an organism
Definition
any living thing
Term
what is a pathogen
Definition
disease causing organism
Term
5 examples of a pathogen
Definition
pathogenic bacteria
viruses
fungi
protozoa
parasites
Term
what is resistance
Definition
the ability to ward off disease
Term
what is susceptibility
Definition
vulnerability to diseases
Term
what is infection
Definition
condition due to the presence of and multiplication of pathogens
Term
what is immunity
Definition
state of being resistant to invading pathogens; mechanisms to prevent entrance and/or destruction of pathogens
Term
what is the organ system made of lymph vessels, lymph nodes, thymus, bone marrow and spleen
Definition
lymphatic system
Term
what is a network of vessels that penetrate every tissue of the body
Definition
lymphatic system
Term
what is a collection of tissues and organs that produce immune cells
Definition
lymphatic system
Term
what is a population of cells that inhabit all of our organs and defend the body from agents of disease
Definition
immune system
Term
3 functions of the lymphatic system
Definition
fluid recovery
immunity
lipid absorption
Term
the excess fluid that is not absorbed by the capillaries is transported through what system and is known as what?
Definition
lymphatic system
lymph
Term
where does lymph re-enter the circulatory system
Definition
r/l subclavian veins
Term
what function of the lymphatic system deals with the excess fluid that the capillaries do not reabsorb
Definition
fluid recovery
Term
what function of the lymphatic system deals with the picking up and destroying of pathogens and toxins at the lymph nodes where WBCs are located
Definition
immunity
Term
what are lymphatic vessels called
Definition
lacteals
Term
what do lacteals absorb
Definition
dietary lipids
Term
what do lacteals transport
Definition
absorbed fats from the sm intestines which travel thru the lymphatic sys
Term
fats return to the blood thru the left or the right subclavian veins
Definition
left
Term
what function of the lymphatic system deals with the job of lacteals
Definition
lipid absorption
Term
4 components of lymphatic sys
Definition
lymph
lymphatic vessels
lymphatic tissue
lymphatic organs
Term
what is the recovered tissue (interstitial) fluid called in the lymphatic system
Definition
lymph
Term
what transports lymph
Definition
lymphatic vessels
Term
what is composed of aggregates of lymphocytes and macrophages that populate many organs
Definition
lymphatic tissue
Term
what contains lymphocytes and macrophages in esp high concentration and are set off by CT capsules
Definition
lymphatic organs
Term
is lymph similar to plasma
Definition
yes
Term
what does lymph originate as
Definition
tissue fluid
Term
lymph leaving nodes contains a large number of what
Definition
lymphocytes
Term
what is the main supply of lymphocytes to the bloodstream
Definition
lymph
Term
what happens to pathogens that enter with the lymph
Definition
they are filtered and destroyed by macrophages or lymphocytes in the nodes
Term
filtered blood re-enters the BV at the r/l subclavian veins and is now called
Definition
plasma
Term
5 lymphatic vessels
Definition
lymphatic capillaries
collecting ducts
6 lymphatic trunks
2 collecting ducts
r/l subclavian veins
Term
what type of capillaries penetrate nearly every tissue
Definition
lymphatic
Term
are lymphatic capillaries closed at one end
Definition
yes
Term
what type of capillaries consist of a sac of thin endothelial cells(simple squamous epithelial) that loosely overlap
Definition
lymphatic
Term
the flaps of the lymphatic capillaries help to create what type of flow
Definition
one-way
Term
when do lymphatic capillaries form
Definition
during embryonic development by budding from veins
Term
order of convergence of lymphatic vessels
(4)
Definition
lymphatic capillaries
collecting vessels
lymphatic trunks
collecting ducts
Term
what lymphatic vessel travels alongside veins and arteries and empty into lymph nodes that filter lymph
Definition
collecting vessels
Term
how fast does lymph travel thru node
Definition
trickles slowly
Term
why does lymph travel slowly thru node
Definition
allowing time for bacteria and pathogens to be phagocytized
Term
what -cyte monitors foreign antigens
Definition
lymphocyte
Term
how are lymphatic trunks formed
Definition
by merging of collecting vessels
Term
6 lymphatic trunks
Definition
lumbar
intestinal
intercostals
bronchomediastinal
subclavian
jugular
Term
what do lymphatic trunks converge to form (2)
Definition
r lymphatic duct
l lymphatic duct (thoracic duct)
Term
what is the union of the r jugular, subclavian and bronchomediastinal trunks called
Definition
r lymphatic duct
Term
where does the r lymphatic duct receive drainage from
Definition
r side of head
r thorax
r arm
Term
where does r lymphatic duct empty in to
Definition
r subclavian vein (plasma)
Term
what is the prominent sac where the thoracic duct begins called
Definition
cisterna chyle
Term
where does the thoracic duct empty in to
Definition
l subclavian vein
Term
what does the thoracic duct drain
Definition
entire body inferior to diaphragm
l thorax
l arm
l side of the face
Term
lymph with ___ empty into l subclavian vein
Definition
chylomicrons
Term
flow of lymph (4)
Definition
primary mechanism
skeletal mus pump
respiratory pump
rapidly flowing blood in subcalvian veins draw in lymph
Term
what is the rhythmic contractions of smooth mus that surrounds the lymphatic vessels
Definition
primary mechanism
Term
6 lymphatic cells
Definition
natural killer (NK)
T lymphocytes (T cells)
B lymphocytes (B cells)
macrophages
dendritic cells
reticular cells
Term
what type of cell is a large lymphocyte that attacks and destroys bacteria, transplanted tissue, infected host cells, cancer cells and carries out immune surveillance
Definition
natural killer NK
Term
what cells are released from the thymus gland into blood and travel to lymph nodes, spleen, bloodstream and tissues
Definition
T cells
Term
where do T cells mature and differentiate
Definition
thymus gland
Term
what cells carry out cellular immunity
Definition
T-cells
Term
what cells kill infected cell, tissue transplants and cancer cells
Definition
T-cells
Term
4 types of T-cells
Definition
cytotoxic-T
helper-T
regulatory-T
memory-T
Term
what cells mature and differentiate in bone marrow
Definition
B-cells
Term
what cells are released from bone to blood and travel to lymph nodes, spleen, bloodstream and tissues
Definition
B-cells
Term
what do B-cells differentiate into? (2 things)
Definition
plasma cells
memory B-cells
Term
when do B-cells differentiate into plasma cells/memory B-cells
Definition
when activated by a specific antigen
Term
what do plasma cells produce
Definition
antibodies aka gamma globulins aka immunoglobulins
Term
t/f antibodies leave the extracellular fluid
Definition
false
Term
can antibodies move into an infected cell
Definition
no
Term
what type of immunity do B-cells carry out
Definition
humoral immunity
Term
why do B-cells carry out humoral immunity
Definition
bc antibodies are only effective in ECF
Term
do memory B-cells take part in 1st exposure
Definition
no
Term
B-cells produce ___ cells
Definition
plasma
Term
plasma cells produce ___
Definition
antibodies
Term
when do antibodies go after the pathogen
Definition
BEFORE the pathogen gets inside your cell
Term
antibodies work in the ___ fluid
Definition
extracellular
Term
T-cells clone into ___ T-cells
Definition
cytotoxic
Term
t/f T-cells kill your cells that have been infected by a pathogen
Definition
true
Term
T-cells kill pathogen before/after it is already inside your cells
Definition
after
Term
___ are large phagocytotic cells of the CT that develop from monocytes that have emigrated from BV
Definition
macrophages
Term
what phagocytizes tissue debris, dead cells, neutrophils, bacteria and foreign matter (type of cell)
Definition
macrophages
Term
___ process foreign matter and display antigenic fragments to certain T-cells alerting the immune sys of presence of enemy (cell type)
Definition
macrophage
Term
___ are called antigen-presenting cells (APCs)
Definition
macrophages
Term
what type of macrophage is branched, mobile APC located in epidermis, mucus membranes and lymphatic organs
Definition
dendritic cell
Term
___ cells function is similar to macrophages in that they engulf foreign matter, migrate to lymph node and activate B and T cells
Definition
dendritic
Term
___ cells are branched, stationary APCs located in the CT of lymphatic organs
Definition
reticular
Term
___ tissues are aggregations of lymphocytes in CT of mucous membranes and various organs
Definition
lymphatic
Term
2 types of lymphatic tissue
Definition
diffuse lymphatic tissue
lymphatic nodules
Term
what is the simplest form of lymphatic tissue
Definition
diffuse lymphatic tissue
Term
in ___ lymphatic tissue, the lymphocytes are scattered rather than densely clustered
Definition
diffuse
Term
what type of lymphatic tissue is prevalent along passageways that open to the outside
Definition
diffuse lymphatic tissue
Term
what is diffuse lymphatic tissue called when its along the respiratory, urinary, reproductive track
Definition
Mucosa-Associated Lymphatic Tissue (MALT)
Term
lymphatic ___ are dense masses of lymphocytes and macrophages that come and go as pathogens invade tissues
Definition
nodules
Term
___ are constant features of lymph nodes, tonsils, appendix
Definition
lymphatic nodules
Term
in the ileum, lymphatic nodules for the ___
Definition
peyer patches = GALT = Gut-Associated Lymphatic Tissue
Term
what are lymphatic nodules found at junction of small to large intestine and prevent bacteria from breaching intestinal wall
Definition
peyer patches = GALT = Gut-Associated Lymphatic Tissue
Term
all lymphatic tissue contains 3 things
Definition
B-cells
T-cells
macrophages
Term
lymphatic ___ are well defined anatomical sites
Definition
organs
Term
___ separates lymphatic organs from surrounding tissue
Definition
capsule
Term
5 lymphatic organs
Definition
red bone marrow
lymph nodes
tonsils
thymus
spleen
Term
___ is where all blood cells are formed: RBC, WBC, platelets
Definition
red bone marrow
Term
WBC includes 5 types
Definition
lymphocytes
monocytes
neutrophils
basophils
eosinophils
Term
red bone marrow is where B-cells become ___ and form antigen receptor sites and are able to recognize and respond to antigens
Definition
immunocompetent
Term
thymus gland is where T-cells become ___ and form antigen receptor sites and are able to recognize and respond to antigens
Definition
immunocompetent
Term
B- and T-cells migrate to what 3 places after they mature
Definition
lymph nodes
tonsils
spleen
Term
what 3 systems does the thymus belong with
Definition
endocrine
lymphatic
immune
Term
thymuse gland houses developing ___ and secretes ___
Definition
T-cells
hormones
Term
what happens to size of thymus as we age
Definition
shrinks
Term
what does the shrinking of thymus cause for elderly people
Definition
causes them to be more susceptible to disease
Term
thymus hormones stimulate development and action of ___ cells
Definition
T-cells
Term
3 hormones of thymus
Definition
thymosin
thymulin
thymopoietin
Term
what is the indented area where arteries and nerves enter and efferent lymphatic vessels and veins exit the lymph node
Definition
hilium
Term
what is the most numerous lymphatic organ
Definition
lymph node
Term
2 functions of lymph node
Definition
cleanse lymph
site of B- and T- cell activation
Term
4 cells in lymph nodes
Definition
B-cell
T-cell
macrophage
reticular cell
Term
what is the center for lymphocyte proliferation
Definition
lymph node
Term
___ are produced and released from lymph node
Definition
antibodies
Term
___ lymphatic vessels carry lymph to lymph node
Definition
afferent
Term
___ lymphatic vessels carry lymph out of the lymph node
Definition
efferent
Term
there are more ___ lymphatic vessels than ___ lymphatic vessels
Definition
afferent
efferent
Term
having more vessels entering the node than exiting helps to do what to speed of lymph flowing thru
Definition
slows lymph
Term
3 places that lymph nodes are esp concentrated
Definition
axillary
cervical
inguinal
Term
what 2 cells are within the node that help to remove 99% of pathogens
Definition
macrophages
reticular cells
Term
3 things swollen nodes indicate
Definition
increased # of lymphocytes
undefeatable and multiplying bacteria/virus
trapped cancer
Term
patches of lymphatic tissue in pharynx that guard against inhaled and ingested pathogens
Definition
tonsils
Term
what are the deep pits in the tonsils called
Definition
tonsillar crypts
Term
3 sets of tonsils
Definition
pharyngeal (adenoids)
palatine
lingual
Term
largest lymphatic organ
Definition
spleen
Term
what lymphatic organ filters blood
Definition
spleen
Term
"erythrocyte graveyard"
Definition
spleen
Term
what pulp in spleen destroys worn out RBC
Definition
red
Term
what pulp in spleen carries out the immune responses to pathogens circulating in blood
Definition
white
Term
main function of spleen
Definition
filter blood
Term
4 functions of spleen
Definition
filter blood
destroy worn out RBC
storage of iron and blood
destroy specific pathogens
Term
___ antigens are on surface of foreign cell's plasma membranes
Definition
foreign
Term
___ antigens trigger an immune response
Definition
foreign
Term
what are the substances to which lymphocytes respond
Definition
foreign antigens
Term
___ antigen is the antibody generator
Definition
foreign
Term
___ antigen identifies cells as belonging to you
Definition
self
Term
___ antigens are located on your cell's plasma membrane
Definition
self
Term
an antibody is a ___ protein
Definition
globular
Term
antibodies are also what 2 things
Definition
gamma globulin
immunoglobulin
Term
antibodies are produced my what cell
Definition
plasma cell
Term
are antibodies specific to a specific foreign pathogen
Definition
yes
Term
do antibodies only bind to their specific foreign antigen
Definition
yes
Term
what promotes the pathogen for destruction and removal from the body
Definition
antibody
Term
what is any defense mechanism to prevent the entrance of pathogens and/or destruction of pathogens
Definition
immunity
Term
3 lines of defense against disease causing agents
Definition
1st
2nd
3rd
Term
which of the 3 lines of defense are nonspecific
Definition
1st and 2nd
Term
which of the 3 lines of defense are specific
Definition
3rd
Term
what line of defense consists of external barriers
Definition
1st
Term
what line of defense consist of leukocytes, macrophages, antimicrobial proteins, immune surveillance, inflammation, fever
Definition
2nd
Term
why are the 1st and 2nd lines of defense called nonspecific
Definition
bc they guard against broad range of pathogens and their effectiveness doesn't depend on prior exposure
Term
t/f 1st and 2nd lines of defense are present from birth
Definition
true
Term
9 nonspecific resistance examples
Definition
external barriers
leukocytes
macrophages
antimicrobial proteins
interferons
complement system
immune surveillance
fever
inflammation
Term
3 specific resistance examples
Definition
B-cell
T-cell
antibody
Term
so if it's not a B-, T-cell or antibody then what type of resistance is it
Definition
nonspecific
Term
2 external barriers
Definition
skin
mucous membranes
Term
skin is a ___ barrier (not external)
Definition
mechanical
Term
why cant skin support much microbial growth
Definition
too dry
too nutrient poor
sweat coats skin with protective acid mantle
Term
4 tracts lined with mucus membrane
Definition
digestive
respiratory
urinary
reproductive
Term
mucus contains what enzyme that destroys bacteria
Definition
lysozymes
Term
mucus membranes of respiratory tract helps to do what
Definition
ensnares microbes
Term
what does the hair/cilia of respiratory tract do
Definition
filter out microbes/dust
remove trapped microbes
Term
___ and ___ are quick evacuation of microbes from body's GI tract
Definition
defecation
vomiting
Term
___ in the digestive tract contains lysozymes that clean the oral cavity
Definition
saliva
Term
___ has an acid pH that destroys pathogens in the urinary tract
Definition
urine
Term
skin and mucus membranes secrete ___ factors
Definition
chemical
Term
4 things that contain lysozymes
Definition
mucus
tears
perspiration
saliva
Term
___ is an (antimicrobial protein) enzyme that destroys bacteria
Definition
lysozyme
Term
___ produces tears that contain lysozymes; dilute and wash away microbes and dust
Definition
lacrimal apparatus
Term
___ is the oily film on skin that traps microbes
Definition
sebum
Term
___ of skin discourages growth of microbes
Definition
acid pH
Term
acidic vaginal secretion discourages ___ and ___ growth
Definition
bacterial
fungal
Term
acidic gastric juice destroys ___ and ___ in stomach
Definition
bacteria
toxins
Term
___ has a viscous consistency in areolar CT that slows down migration of microbes
Definition
hyaluronic acid
Term
___ 2nd line of cellular defense in tissues
Definition
phagocytes = phagocytic cells
Term
5 leukocytes
Definition
neutrophils
basophils
eosinophils
monocyte
lymphocyte
Term
neutrophils target
Definition
bacteria
Term
eosinophils target
Definition
parasites
Term
basophils increase with
Definition
inflammation
Term
"bacterial slayers"
Definition
neutrophil
Term
___ spend most of their time killing bacteria by phagocytosis or respiratory burst
Definition
neutrophil
Term
lysosomes in neutrophils discharge their enzyme into tissue fluid and catalyze reaction called
Definition
respiratory burst
Term
what does the respiratory burst form (2 things)
Definition
hydrogen peroxide
hypochlorite (chlorine bleach)
Term
the formation of the hydrogen peroxide and hypochlorite creates a
Definition
killing zone
Term
the ___ destroys more bacteria than phagocytosis alone but the neutrophils also killed by chemicals
Definition
killing zone
Term
___ target parasites, allergen and others
Definition
eosinophils
Term
___ become concentrated at sites of allergy, inflammation and parasitic infection
Definition
eosinophils
Term
eosinophils kill parasites by releasing
Definition
hydrogen peroxide
Term
___ phagocytize antigen-antibody complexes
Definition
eosinophils
Term
___ secrete chemicals that aid in mobility of other leukocytes
Definition
basophils
Term
___ secrete heparin and histamine
Definition
basophils
Term
___ dilates and makes BV leaky which increases blood flow and speed of delivery of leukocytes
Definition
histamine
Term
___ is an anticoagulant that inhibits formation of blood clots that would impede movement of leukocytes
Definition
heparin
Term
___ cells secrete histamine and heparin (not basophils)
Definition
mast
Term
3 type of lymphocytes
Definition
natural killer cells (NK cells)
T cells
B cells
Term
___ emigrate from BV and transform into macrophages
Definition
monocytes
Term
monocytes emigrate from BV and transform into ___
Definition
macrophages
Term
4 examples of macrophages
Definition
dendritic cells
microglia cells
alveolar macrophages
hepatic macrophages
Term
2 blood borne antimicrobial proteins
Definition
interferons
complement system
Term
leukocytes infected with viruses secrete proteins called ___
Definition
interferons
Term
___ bind to surface receptors of neighboring cells and induce the neighboring cells to produce dozens of antiviral proteins
Definition
interferons
Term
antiviral proteins do not interfere with entry of virus but interfer with ___ inside uninfected cell (2words)
Definition
viral reproduction
Term
interferons are specific/nonspecific to a large number of viruses
Definition
nonspecific
Term
___ confer resistance to cancer cells by activating NK cells which destroy malignant cells
Definition
interferons
Term
___ is a group of 30 or more globulins (beta-globulins)
Definition
complement system
Term
___ = "completes the action of antibodies"
Definition
"complement"
Term
where are complement proteins synthesized
Definition
liver
Term
where do complement proteins circulate
Definition
blood
Term
4 contributions to pathogen destruction by complement proteins
Definition
inflammation
immune clearance
phagocytosis by opsonization
cytolysis
Term
___ stimulates mast cells and basophils to release histamine which attracts neutrophils and macrophages
Definition
inflammation
Term
inflammation stimulates mast cells and basophils to release ___ which attracts neutrophils and macrophages
Definition
histamine
Term
inflammation stimulates mast cells and basophils to release histamine which attracts ___ and ___
Definition
neutrophils
macrophages
Term
in immune clearance complement proteins bind pathogenic ___ to ___
Definition
antigen-antibody complexes
RBCs
Term
in ___ neutrophils and macrophages phagocytize bacteria, viruses and other pathogens
Definition
phagocytosis
Term
in phagocytosis, ___ and ___ phagocytize bacteria, viruses and other pathogens
Definition
neutrophils
macrophages
Term
can neutrophils/macrophages phagocytize "naked" pathogens
Definition
no
Term
when complement proteins coat the microbial cells, this is called
Definition
opsonization
Term
after opsonization, the complement proteins serve as ___ for neutrophils and macrophages attachment to pathogen (2 words)
Definition
binding site
Term
___ means "to make tasty"
Definition
opsonization
Term
___ "butters up" the pathogen to make them more appetizing for neutrophils and macrophages
Definition
opsonization
Term
in cytolysis, complement proteins form a ring called ___ (3 words)
Definition
membrane attack complex (MAC)
Term
in ___, complement proteins form a ring called membrane attack complex (MAC)
Definition
cytolysis
Term
in cytolysis, ___ form a ring called membrane attack complex (MAC)
Definition
complement proteins
Term
complement proteins are specific/nonspecific proteins
Definition
nonspecific
Term
complement proteins produced by ___
Definition
liver
Term
complement proteins complement ___ to destroy any pathogens
Definition
antibodies
Term
antibodies are specific/nonspecific proteins
Definition
specific
Term
antibodies are produced by ___ cell
Definition
plasma
Term
antibodies only destroy specific pathogens in ___ fluid before the pathogen gets inside your cell
Definition
extracellular
Term
immune surveillance is carried out by ___ cells
Definition
natural killer (NK)
Term
NK cells are specific/nonspecific
Definition
nonspecific
Term
"pit bulls" of the immune defense system
Definition
natural killer (NK cells)
Term
___ patrol the body looking for pathogens or diseased host cells
Definition
natural killer cells (NK cells)
Term
4 things NK cells destroy
Definition
bacteria
host cells infected with viruses
cancer cells
tissue transplants
Term
what 2 things do NK cells secrete
Definition
granzymes
perforin
Term
what does perforin do to the pathogens cell membrane
Definition
punch holes in it
Term
what do granzymes do
Definition
enter through the pores and destroy pathogen's enzymes and induce apoptosis
Term
what is apoptosis
Definition
programmed cell death
Term
___ is abnormal elevation of body temp
Definition
fever
Term
fever aka
Definition
pyrexia
Term
___ means pertaining to fever
Definition
febrile
Term
3 benefits of fever
Definition
1 promote interferon activity
2 elevate metabolic rate and accelerate tissue repair
3 inhibits reproduction of bacteria and viruses by sequestering iron and zinc in the liver and spleen
Term
fever is initiated by ___
Definition
pathogens
Term
___ stimulates hypothalamus to raise set point for body temp
Definition
fever
Term
hypothalamus secretes ___ that enhance the effect of fever
Definition
prostaglandins
Term
2 things that inhibit prostaglandins
Definition
aspirin
ibuprofen
Term
what happens to fever when pathogen is defeated
Definition
it drops
Term
fever > 105 can lead to 4 things
Definition
1 delirious
2 convulsions
3 irreversible brain damage
4 death
Term
___ is a local defensive response to tissue injury of any kind including trauma and infection
Definition
inflammation
Term
3 purposes of inflammation
Definition
1 limit spread of pathogens and ultimate destruction of pathogen
2 remove debris of damaged tissue
3 to initiate repsair
Term
4 signs of inflammation
Definition
redness
swelling
heat
pain
Term
"itis" denotes what
Definition
localized swelling
Term
where can inflammation occur
Definition
anywhere
Term
where is inflammation most observable
Definition
in the skin
Term
what chemical regulates inflammation
Definition
cytokines
Term
3 major processes that inflammation involves
Definition
1 mobilization of the body's defenses
2 containment and destruction of pathogens
3 tissue cleanup and repair
Term
what is the immediate requirement for dealing with tissue injury
Definition
mobilization of body's defenses
Term
what is an increase in blood flow beyond normal
Definition
hyperemia
Term
what causes hyperemia
Definition
mast cells and basophils secreting histamine
Term
increase blood flow increases # of ___ that get to site of inflammation
Definition
neutrophils
Term
mobilization includes ___ of WBCs, antibodies, complement proteins, fibrinogen
Definition
diapedesis
Term
___ prevents blood from clotting in the BV
Definition
heparin
Term
mobilization is the basis for the 4 cardinal signs
Definition
1 heat results from hyperemia
2 redness due to hyperemia
3 swelling (edema) due to increases permeability of BV and fluid filtration
4 pain results pressure on nerves from edema, direct injury to nerves stimulation of pain receptors by prostaglandins
Term
inflammation is a ___ response
Definition
local
Term
is it necessary to prevent the pathogen from spreading throughout the body
Definition
yes
Term
___ clots tissue fluid in area of injury and walls off area of bacteria
Definition
fibrinogen
Term
___ prevents tissue fluid around immediate injury from clotting
Definition
heparin
Term
___ are trapped in fluid pocket surrounded by a clotted wall
Definition
pathogens
Term
4 things that attack pathogens
Definition
neutrophils
macrophages
antibodies
complement proteins
Term
___ ___ ___ prevents pathogens from escaping
Definition
clotted tissue wall
Term
___ begin phagocytosis and respiratory burst
Definition
neutrophils
Term
neutrophils begin ___ and ___ ___
Definition
phagocytosis
respiratory burst
Term
when do most of the monocytes and macrophages arrive
Definition
8 hours later
Term
___ and ___ phagocytize bacteria, dead neutrophils, damaged host cells, and act as APC to lymphocytes
Definition
monocyte
macrophage
Term
___ reduces venous drainage and promotes lymphatic drainage
Definition
edema
Term
lymphatic system can remove 3 things
Definition
bacteria
dead cells
tissue debris
Term
___ accumulates in tissue cavity called an abcess
Definition
pus
Term
pus accumulates in tissue cavity called an ___
Definition
abcess
Term
pus may form from 4 things
Definition
dead tissue cells
dead bacteria
dead neutrophils and macrophages
tissue fluid
Term
___ secrete platelet-derived growth factor
Definition
platelets
Term
___ stimulates fibroblast and collagen synthesis
Definition
platelet-derived growth factor
Term
___ delivers O2 and AAs for protein synthesis
Definition
hyperemia
Term
___ increases MBR speeds mitosis and tissue repair
Definition
heat
Term
3 forms of specific immunity
Definition
B-cell
T-cell
antibodies
Term
what is the 3rd line of defense
Definition
specific immunity
Term
2 characteristics that distinguish specific resistance
Definition
specificity
memory
Term
in ___, immunity is directed against a particular pathogen
Definition
specificity
Term
t/f immunity to one pathogen confers immunity to others
Definition
false
Term
in ___, body reacts so quickly there is no noticeable illness
Definition
memory
Term
___ produce memory cells
Definition
lymphocytes
Term
___ respond to subsequent infections of the same antigen faster and more overwhelmingly so that there is little tissue damage or symptoms
Definition
memory cells
Term
4 general aspects of specific immunity
Definition
forms of immunity
antigens
lymphocytes
antigen presenting cells
Term
5 similar characteristics of B and T lymphocytes
Definition
1 recognize self-antigens from non-self antigens
2 dont normally harm self-antigens
3 have antigen receptor sites on cell membranes that can recognize and specifically bind to specific foreign antigens
4 B and T lymphocytes go through a period of cloning or proliferation (mitosis)
5 B and T lymphocytes produce memory cells that respond to any secondary encounter with the same pathogen more rapidly and vigorously
Term
immunity that is carried out by T cells which directly attack and destroy foreign cells or diseased host cells
Definition
cellular immunity (cell-mediated)
Term
___ cells destroy pathogens residing in host cells
Definition
T
Term
___ cells kill infected host cells
Definition
T
Term
___ cells also act against parasitic worms, cancer cells, transplanted tissues or organs
Definition
T
Term
immunity that is carried out by B cells
Definition
humoral immunity (antibody-mediated)
Term
humoral immunity is carried out by ___ cells
Definition
B
Term
cellular immunity is carried out by ___ cells
Definition
T
Term
___ cells clone -> convert into plasma cells -> plasma cells produce antibodies -> antibodies attack pathogens in extracellular fluid
Definition
B
Term
B cells clone -> convert into ___ cells -> plasma cells produce antibodies -> antibodies attack pathogens in extracellular fluid
Definition
plasma
Term
B cells clone -> convert into plasma cells -> plasma cells produce ___ -> antibodies attack pathogens in extracellular fluid
Definition
antibodies
Term
B cells clone -> convert into plasma cells -> plasma cells produce antibodies -> antibodies attack pathogens in ___ fluid
Definition
extracellular
Term
t/f antibodies do not destroy the pathogen
Definition
true
Term
antibodies do what to pathogens
Definition
tag them for destruction
Term
4 ways antibodies "tag" pathogens
Definition
neutralization
complement fixation
agglutination
precipitation
Term
3 things antibodies effective against
Definition
1 extracellular viruses, bacteria, yeast, protozoa
2 extracellular toxins, venoms, allergens
3 in mismatched blood transfusions, destroys foreign erythrocytes
Term
immunity that only works against extracellular stages before the pathogens enter body cells
Definition
humoral immunity
Term
immunity that destroys pathogens in intracellular stages by killing your cells that host the pathogen
Definition
cellular immunity
Term
t/f humoral and cellular immunity attack the same pathogen at different stages of the life cycle of the pathogen
Definition
true
Term
immunity that makes its own antibodies or Tc cells against the pathogen and produces memory cells (Bm and Tm)
Definition
active immunity
Term
immunity that acquires antibodies or Tc cell produced from another person or an animal that has developed them through immunity to the pathogen
Definition
passive immunity
Term
does passive immunity produce memory cells
Definition
no
Term
2 ways active/passive immunity can occur
Definition
artificial
natural
Term
immunity where you experience a primary immune response, you get the disease and symptoms; produce memory cells for long term immunity
Definition
natural active immunity
Term
immunity where body produces one's own antibodies and cytotoxic Tc-celss due to vaccine
Definition
artificial active immunity
Term
vaccines can be ___ or ___
Definition
dead
attenuated (weakened)
Term
immunity where there will be cloning of T cells, production of Tm memory cells and cytotoxic Tc cells, cloning of B cells, production of Bm memory cells and plasma cells that produce antibodies
Definition
artificial active immunity
Term
do vaccines cause an immune response
Definition
yes with little to no effects
Term
4 classes of immunity are under this scheme of active/passive immunity
Definition
natural active
artificial active
natural passive
artificial passive
Term
immunity where one produces own antibodies or T cells as a result of natural exposure to an antigen
Definition
natural active
Term
immunity where one produces one's own antibodies and T cells as a result of vaccine
Definition
artificial active
Term
immunity where one acquires antibodies thru placenta from mom or mom's breast milk
Definition
natural passive
Term
immunity where one acquires antibodies thru injection of immune serum from another individual or animal that has been exposed to the pathogen and produced antibodies
Definition
artificial passive
Term
what 2 immunities do not produce memory cells
Definition
natural passive
artificial passive
Term
what 2 immunities produce memory cells
Definition
natural active
artificial active
Term
2 immune response
Definition
primary immune response
secondary immune response
Term
immune response that occurs when virgin B and T cells respond to specific antigen for the 1st time; delay in development of antibodies and Tc cells; symptoms develop; memory cells produced
Definition
primary immune response
Term
immune response that occurs when a specific antigen is encountered a 2nd time; memory B and T cells produce antibodies and Tc cells; response rapid; no symptoms of disease
Definition
secondary immune response
Term
t/f each time exposed, more memory cells are produced
Definition
true
Term
what is an antigen
Definition
any molecule that triggers immune response
Term
example of free molecule antigen
Definition
venom
toxin
Term
some antigens are components of ___ or ___
Definition
cell membranes
bacterial cell walls
Term
region of antigen that stimulates an immune response
Definition
epitopes
Term
what are haptans
Definition
molecules too small to be antigentic
Term
1st exposure, ___ binds to a host's macromolecule and create a complex that is recognized by the body as foreign
Definition
haptan
Term
2nd and subsequent exposures, ___ alone may stimulate an immune response
Definition
haptan
Term
t/f many people are allergic to haptans
Definition
true
Term
5 places haptans can be found
Definition
cosmetics
detergents
industrial chemicals
poison ivy
animal dander
Term
most common drug allergy
Definition
penicillin
Term
is penicillin a haptan
Definition
yes
Term
the ___ complex binds to mast cell/basophils and triggers massive release of histamine and inflammatory chemicals which may cause anaphylactic shock
Definition
penicillin haptan
Term
3 stages of T cells
Definition
birth
training
deployment
Term
"born" in red bone marrow from stem cells
Definition
T cells
Term
migrate to thymus gland
Definition
T cells
Term
"train" in thymus gland and become mature becoming immunocompetent
Definition
T cells
Term
when T cells become immunocompetent, the develop ___
Definition
surface antigen receptors
Term
once T cells develop surface antigen receptors, they are able to ___
Definition
recognize foreign antigens presented to them by APC
Term
___ have not encountered a foreign antigen
Definition
naive T cells
Term
where do naive T cells colonize
Definition
lymphatic tissue
other organs
circulate in plasma fluid/interstitial
Term
after a naive T cell is exposed, its called ___
Definition
Tm cell (memory T cell)
Term
___ cells are produced in red bone marrow from stem cells and mature in bone marrow
Definition
B cells
Term
B cells mature in bone marrow to become ___ B cells
Definition
immunocompetent
Term
when do B cells become immunocompetent
Definition
when B cells develop surface antigen receptors and B cells are capable of recognizing foreign antigen
Term
naive B cells have/have not encountered a foreign antigen
Definition
have not
Term
B cells colonize
Definition
lymph nodes
spleen
bone marrow
mucous membranes
Term
what are naive B cells called after they are exposed to specific pathogen's antigen
Definition
Bm cell (memory B cell)
Term
T cells can/cannot recognize their specific antigen on their own
Definition
cannot
Term
T cells require ___
Definition
antigen-presenting cells (APCs)
Term
3 examples of APCs
Definition
macrophage
dendritic cell
B cell
Term
APCs funtion relies on a family of genes on chromosome 6 that codes for ___ proteins
Definition
MHC or major histocompatibility complex protein
Term
where are MHCP located
Definition
on the surface of APC
Term
what are MHCP specialized for
Definition
displaying foreign antigens
Term
___ are important in organ transplants
Definition
MHCP
Term
___ act as "ID" tags and labels every cell as belonging to you
Definition
MHCP
Term
___ alert the immune system to the presence of foreign antigens
Definition
APCs
Term
lymphocytes and APCs communicate with each other with ___
Definition
cytokines
Term
cytokines with specific names called
Definition
interleukins
Term
___ stimulate cloning of B/T cells
Definition
interleukins
Term
___ are chemical signals sent from one leukocyte to another leukocyte or leukocyte derivative
Definition
interleukins
Term
___ is specific defense carried out by T cells
Definition
cellular immunity
Term
cellular immunity is specific defense carried out by ___ cells
Definition
T
Term
___ prevents pathogen from causing disease in future
Definition
Tm cells
Term
4 classes of T cells
Definition
cytotoxic T = Tc
helper T = TH
regulatory T = Tr, T-reg
memory T = Tm
Term
___ cells are the "effectors" of cellular immunity that "effect" the pathogens
Definition
cytotoxic T
Term
3 cytotoxic T cells
Definition
T8
CD8
CD8+
Term
___ cells promote cloning of T and B cells
Definition
helper T
Term
3 helper T cells
Definition
T4
CD4
CD4+
Term
___ cells seem to be important in preventing autoimmune diseases
Definition
regulatory T
Term
___ cells limit immune response of T and B cell activity after pathogen defeated
Definition
regulatory T
Term
___ cells descended from naive Tc cells
Definition
memory T
Term
___ cells provide immunity from future exposure
Definition
memory T
Term
3 stages of cellular and humoral immunity
Definition
recognition
attack
memory
Term
stage of cellular immunity that requires antigen presentation
Definition
recognition
Term
when Tc and Th encounter APC, Tc and Th initiate ___
Definition
immune response
Term
2 classes of MHC protein
Definition
MHC I
MHC II
Term
___ proteins occur on all nucleated body cells
Definition
MHC-I
Term
___ proteins are constantly being produced
Definition
MHC-I
Term
while being transported, MHC-I will pick up ___ proteins on the way
Definition
small
Term
if there are ___ proteins on MHC-I, Tc cells react
Definition
viral
Term
___ proteins are like "tag" on the host cells
Definition
MHC-I
Term
___ proteins only occur on APCs (macrophages, dendritic cells, B-cells)
Definition
MHC-II
Term
___ proteins are aka human leukocyte antigens
Definition
MHC-II
Term
___ proteins display their foreign antigens to Th cells
Definition
MHC-II
Term
3 characteristics of MHC-I
Definition
all nucleated cells
id your cells as belonging to you
presents to cytotoxic T
Term
3 characteristics of MHC-II
Definition
human leukocyte antigens
located on APC
presents to helper T
Term
immune response begins when Tc and Th cells bind to MHCP but before either can respond, they must bind to ___
Definition
2nd APC
Term
immune response begins when Tc and Th cells bind to MHCP but before either can respond, they must bind to 2nd APC and this is known as ___
Definition
co-stimulation
Term
___ prevents the immune system from launching an attack in the absence of an enemy and helps to prevent autoimmune diseases
Definition
co-stimulation
Term
___ activates cloning which produces Tc, Th, Tm cells
Definition
co-stimulation
Term
___ cells coordinate both humoral and cellular immunity by accelerating cloning
Definition
helper T
Term
___ cells secrete interleukins
Definition
helper T
Term
helper T cells secrete interleukins that exert 3 effects
Definition
attracts neutrophils and NK cells
attracts macrophages
stimulates cloning of T/B cells
Term
without ___ cells, there is no immunity
Definition
helper T
Term
without helper T cells, there is no __
Definition
immunity
Term
what destroys helper T cells
Definition
HIV
Term
___ cells are the only T cell that directly attack and kill other cells
Definition
cytotoxic T
Term
how do cytotoxic T cells directly kill other cells?
Definition
recognize MHC-I marker on diseased host and bind to infected cell; secrete chemicals that destroy the infected cell then unbind and moves to next diseased cell
Term
3 cytotoxic cell secretions
Definition
1 perforins and granzymes destroy target cell same as NK cell
2 interferons inhibit viral replication and recruit and activates macrophages
3 tumor necrosis factor (TNF) which aids in macrophage activation and kills cancer cells
Term
___ spread to uninfected cells and protects them
Definition
interferons
Term
___ is destruction of tissue
Definition
necrosis
Term
do memory T cells take part in the primary immune response
Definition
no
Term
do memory T cells take part in the secondary immune response
Definition
yes
Term
which immune response is more vigorous and quicker
Definition
secondary
Term
in secondary immune response, you start with large number of ___ cells
Definition
memory T
Term
___ is when it takes fewer steps to activate memory T cells and the response time is less for memory T cells
Definition
T cell recall response
Term
___ cells are not well understood
Definition
regulatory T
Term
___ cells slow down immune reaction to prevent autoimmune diseases
Definition
regulatory T
Term
all secondary responses are carried out by ___ cells or ___ cells
Definition
memory T
memory B
Term
humoral immunity involves ___ cells
Definition
B
Term
___ cells carry out an indirect method of defense
Definition
B
Term
___ cells produce plasma cells
Definition
B
Term
B cells produce plasma cells that produce ___
Definition
antibodies
Term
___ attack specific antigens (3 names)
Definition
antibodies
gamma globulins
immunoglobulins
Term
where does humoral immunity take place
Definition
extracellular fluid before enters cell
Term
in recognition, ___ cells recognize, bind to and engulf pathogen
Definition
B
Term
B cells process the antigen and display the antigen's ___ on its MHC-II proteins
Definition
epitopes
Term
___ cells can bind to MHC-II proteins with antigens epitopes and secrete interleukins
Definition
helper T
Term
secretion of interleukins stimulates cloning of ___ cells
Definition
B
Term
1st time the B cell is exposed to its pathogen, plasma cells produce ___ and later produce ___
Definition
IgM
IgG
Term
subsequent exposures, plasma cells produce tremendous amounts of ___
Definition
IgG
Term
by checking ___, one can determine if its a primary or secondary immune response
Definition
antibodies
Term
3 places antibodies circulate
Definition
lymph
blood
tissues
Term
___ binds to foreign antigens and set them up for destruction
Definition
antibodies
Term
___ cells dont respond to 1st exposure to antigen
Definition
memory B
Term
___ cells do not take part in primary immune response
Definition
memory B
Term
___ cells remain in reserve for the next exposure to the exact same antigen
Definition
memory B
Term
___ cells carry out the 2nd immune response
Definition
memory B
Term
5 classes of antibodies
Definition
IgM
IgA
IgD
IgG
IgE
(madge)
Term
___ 1st antibody secrete in primary immune response
Definition
IgM
Term
___ found in blood as anti-A,-B antibodies
Definition
IgM
Term
___ found in secretions of tears, mucous, saliva, milk, sweat, intestinal secretions
Definition
IgA
Term
___ is defense against pathogens on body surface, ingested, or inhaled
Definition
IgA
Term
___ provides passive immunity to newborn in breast milk
Definition
IgA
Term
___ 80% of circulating antibodies
Definition
IgG
Term
___ predominate antibody secreted in 2nd immune response
Definition
IgG
Term
___ passes across placenta to fetus and confers temporary immunity to newborn
Definition
IgG
Term
___ attaches to the plasma membrane of basophils and mast cells
Definition
IgE
Term
when antigen binds to ___ on basophils and mast cells, they release histamine that increases inflammation
Definition
IgE
Term
___ attracts eosinophils to parasitic infections
Definition
IgE
Term
action of ___ does not directly kill pathogens
Definition
antibodies
Term
___ physically hinder antigens
Definition
antibodies
Term
___ bind to antigen so the antigen cannot attach to cells
Definition
antibodies
Term
4 mechanisms to render antigens harmless
Definition
neutralization
complement fixation
agglutination
precipitation
Term
___ only certain regions of antigen is pathogenic
Definition
neutraalization
Term
___ bind to pathogenic regions of the antigen and prevent pathogen from binding to your cells
Definition
antibodies
Term
___ IgM and IgG bind to pathogen and expose antibody's complement binding site
Definition
complement fixation
Term
complement proteins bind to complement binding site which results in ___
Definition
complement fixation
Term
4 complement fixations
Definition
inflammation
phagocytosis
cytolysis
oposonization
Term
___ is important in immobilizing bacteria
Definition
agglutination
Term
___ binds together 2 or more pathogens to immobilize them
Definition
agglutination
Term
___ facilitates phagocytosis by neutrophils and macrophages and prevents pathogens from spreading thru tissues
Definition
agglutination
Term
___ the antibody-antigen complexes become so large that is precipitates out of solution and eosinophils then phagocytize the pathogen
Definition
precipitation
Term
___ attacks helper T cells
Definition
HIV
Term
no helper T's = no ___
Definition
immunity
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