Shared Flashcard Set

Details

A&P II Lecture Exam #2
TCC- Dr. Momeny
365
Physiology
Undergraduate 2
10/22/2012

Additional Physiology Flashcards

 


 

Cards

Term
The cardiovascular System consists of
Definition
Pump (heart)
Conduction system (blood vessels)
Fluid (blood)
Term
Blood
Definition
specialized fluid of connective tissues

contains cells suspended in a fluid matrix
Term
Functions of Blood
Definition
Transportation of dissolves substances
Regulation of pH and ions***
Term
Bloods Transports these materials:
Definition
Oxygen & Co2
Nutrients
Hormones
Immune System Components
Waste products
Term
Blood Made up of
Definition
Plasma
Formed Elements
Term
Plasma contains
Definition
water
dissolved plasma proteins
other solutes
Term
Formed Elements
Definition
all cells and solids
Term
3 Things that make up Formed Elements
Definition
RBC (red blood cells)
WBC (white blood cells)
platelets
Term
Red Blood Cells
Definition
aka erythrocytes

transport oxygen
Term
White Blood Cells
Definition
aka leukocytes

Part of immune system
Term
Platelets
Definition
cell fragments involved in clotting
Term
Hemopoiesis
Definition
process of producing formed elements by myeloid & lymphoid stem cells
Term
2 Cells in the WBC Category
Definition
Granulocytes

Agranulocytes
Term
The 3 Granulocytes
Definition
Basophil
Eosinophil
Neutrophil
Term
The 2 Agranulocytes
Definition
Monocyte
Lymphocyte
Term
3 Physical Characteristics of Blood
Definition
38*C (100.4*F) normal body temp
high viscosity
Slightly alkaline pH (7.35-7.45)
Term
Normal Blood Volume for Male & Female
Definition
Male = 5-6 liters

Female = 4-5 liters

Usually 7% of body weight in kg
Term
2 Extracellular Fluids
Definition
Interstitial fluid (IF)

Plasma
Term
Interstitial Fluid
Definition
fluid between the cells
Term
Plasma
Definition
fluid section of blood

makes up 50-60% of blood volume
Term
What materials plasma & IF exchange across capillary walls
Definition
water
ions
small solutes
Term
Composition of plasma
2 things
Definition
water- more than 90%
plasma proteins
Term

Plasma Proteins

3 of them

Definition
Albumins Globulins Fibrinogen
Term
Albumins
Definition

60% of plasma transport substances such as fatty acids, thyroid hormones, and steroid hormones

 

Made in liver

Term
Globulins
Definition
35% of plasma
antibodies (immunoglobulins)
transport globulins (small molecules), lipoproteins, hormone-binding proteins.
Term
Fibrinogen
Definition
4% of plasma
molecules that form clots and produce long, insoluble strands of fibrin
Term
Serum
Definition
liquid part of a blood sample in which dissolved fibrinogen has converted to a solid fibrin
Term
Other plasma proteins
Definition
1% of plasma
changing quantities of specialized plasma proteins
Peptide hormones normall present in circulating blood
ex. Insulin, prolactin, TSH, FSH, LH
Term
Origins of Plasma Proteins
Definition
More than 60% made in liver
Antibodies made by PLASMA CELLS
Peptide hormones made by endocrine organs
Term
Red Blood Cells
Definition
Made up 99.9% of blood's formed elements
Term
Red Blood Cells are made up of
Definition
Hemoglobin

Hematocrit
Term
Red Blood Cell Count
Male & Female
Definition
the # of RBC in 1 microliter of whole blood

Male= 4.5-6.3 million
Female= 4.2-5.5 million
Term
Hemoglobin
Definition
Red pigment that gives whole flood its color
Binds and transports oxygen and carbon dioxide
Term
Hematocrit
Definition
(packed cell volume)
Percentage of RBC in centrifuged whole blood
Term
Hematocrit for Male & Females
Definition
Males= 40-54

Females= 37-47
Term
Structure of the RBC
Definition
Small and highly specialized discs
Thin in middle and thicker at edge
Term
Three Imp Effects of RBC shape on function
Definition
High Surface to volume ratio
Discs (RBC) form stacks called rouleaux
Discs bend and flex entering small capillaries
Term
High surface to volume ratio
Definition
Quickly absorbs and releases oxygen
Term
RBC form from stacks called Rouleaux
Definition
smooth the flow through narrow blood vessels
Term
Discs bend and flex entering small capillaries
Definition
7.8 um RBC passes through 4 um capillary
Term
Life Span of RBC
Definition
Since they lack nuclei, mitochondria & ribosomes
No repair & anaerobic metabolism
Live ~ 120 days
Term
Hemoglobin
Definition
protein molecule that fills about 1/3 of RBC cytoplasm & transports respiratory gases
Term
Hemoglobin Male
Definition
14-18 g/dL
Term
Hemoglobin Female
Definition
12-16 g/dL
Term
Hemoglobin Structure
Definition
Complex quarternary structure:
Four globular protein subunits (2 alpha & 2 beta chains)
Term
Heme
Definition
one molecule of hemoglobin
Term
Each heme contains 1 _____ ion
Definition
iron
Term
Iron Ions
Definition
Associate easily with oxygen

Dissociate easily from oxygen
Term
Hemoglobin Function
Definition
carries oxygen
with low oxygen (peripheral capillaries)
Term
Low oxygen in hemoglobin
Definition
Hemoglobin releases oxygen
Binds carbon dioxide & carries it to lungs
which forms carbaminohemoglobin
Term
Fetal Hemoglobin (HbF)
Definition
strong form of hemoglobin found in embryos

Takes oxygen from mother's hemoglobin
Term
RBC Formation & Turnover
Definition
1% of circulating RBC wear out per day
About 3 million RBC per second
Term
Hemoglobin Conversion & Recycling
Definition
Macrophages of liver, spleen & bone marrow
These monitor RBC
Engulf RBC before membranes rupture
Term
Hemolyze
Definition
membranes rupture
Term
Hemoglobinuria
Definition
hemoglobin breakdown products in urine due to excess hemolysis in bloodstream
Term
Hematuria
Definition
whole red blood cells in urine due to kidney or tissue damage
Term
Breakdown of Biliverdin
Definition
Biliverdin (green) is converted to bilirubin (yellow)
Bilirubin is excreted by liver (bile)
Converted by intestinal bacteria to urobilins and stercobilins
Term
Phagocytosis of Hemoglobin Conversion
Definition
Phagocytes break hemoglobin into components
Globular proteins to amino acids
Heme to biliverdin
Iron
Term
Jaundice
Definition
caused by bilirubin buildup
Term
Iron Recylcing
Definition
Iron removed from heme leaving biliverdin

To transport protein

To storage protein
Term
Transferrin
Definition
transport proteins
Term
Ferritin & Hemosiderin
Definition
Storage proteins
Term
Urobilins
Definition
cause our pee to be yellow
Term
Stercobilins
Definition
make our stools brown/black
Term
RBC Production
Definition
Erythropoiesis
Term
Erythropoiesis
Definition
Occurs only in myeloid tissues (red bone marrow) in adults
Term
Myeloid Tissue
Definition
red bone marrow
Term
Stem cells in myeloid tissue divide to produce?
2 things
Definition
Myeloid stem cells become RBC's and some WBC's

Lymphoid stem cells become lymphocytes
Term
RBC Maturation ->
Definition
Myeloid stem cell -> Proerythroblast -> Erythroblasts -> Reticulocyte -> Mature RBC
Term
Building red blood cells requires
Definition
Amino acids

Iron

Vitamins B12, B6 & folic acid
Term
Vitamins B12, B6 & folic acids deal with
Definition
Pernicious anemia
Term
Pernicious anemia
Definition
Low RBC production

Due to unavailability of vitamin B12
Term
Eyrthropoietin (EPO)
Definition
ESH
Secreted when oxygen in peripheral tissues is low (hypoxia)
Due to disease or high altitude
Term
Surface Antigens
Definition
are cell surface proteins that identify cells to immune system
Normal cells are ignored and foreign cells attacked by immune system
Term
Blood Types
Definition
Genetically determined
By presence or absense of RBC surface antigens
Term
Agglutinogens
Definition
Antigens on surface of RBC
Screened by immune system
Plasma antibodies attack and agglutinate (clump) foreign antigens
Term
Rh Factor
Definition
AKA D antigen

Rh + or Rh -
Term
Only sensitized ____ blood has anti-Rh antibodies
Definition
Rh -
Term
Blood Typing
Definition
testing for transfusion compatibility
Term
Cross Reactions in Transfusions
Definition
Occur if donor and recipient blood types not compatible
Without cross match, type )- is universal donor
Term
White Blood Cells
Definition
Leukocytes
Do NOT have hemoglobin
Have nuclei and other organelles
Term
WBC Functions
Definition
Defend against pathogens
Remove toxins and wastes
Attack abnormal cells
Term
WBC Location
Definition
Connective Tissue proper
Lymphatic system organs
Term
Four Characteristics of Circulating WBC
Definition
Can migrate out of bloodstream
Have amoeboid movement
Attracted to chemical stimuli
Some are phagocytic
Term
Neutrophils
Definition

50-70% of WBCs Lysosomal enzymes & hydrogen peroxide First to attack bacteria Engulf and digest pathogens Degranulation Form pus

 

INCREASE WHEN BACTERIAL INFECTION PRESENT

Term
Degranulation
Definition
removing granules from cytoplasm
Defensins (peptides from lysosomes) attack pathogen membranes
Term
Eosinophils
Definition
Acidophils
2-4% of WBCs
Excrete toxic compounds (nitric oxide & cytotoxic enzymes)
^ when allergies present
Term
Basophils
Definition
Less than 1% of WBCs
Releases histamine
Releases heparin
Term
Heparin
Definition
prevents blood clotting
Term
Histamine
Definition
dilates blood vessels
Term
Monocytes
Definition
2-8% of WBCs
Term
Lymphocytes
Definition
20-30% of WBCs
Migrate in and out of blood
Bodies specific defense system
Term
3 Classes of Lympcytes
Definition
T Cells
B Cells
NK Cells
Term
T Cells
Definition
cell mediated immunity
Attack foreign cells directly
Term
B Cells
Definition
Humoral immunity
Differentiate into plasma cells
Synthesize antibodies
Term
NK Cells
Definition
Natural Killer

Detect and destory abnormal tissue cells (cancer)
Term
Differential Count
Definition
Detects changes in WBC populations
Infections inflammation, & allergic reactions
Term
WBC Disorder
Definition
Leukopenia
Leukocytosis
Leukemia
Term
Leukopenia
Definition
low WBC count
Term
Leukocytosis
Definition
high WBC count
Term
Leukemia
Definition
High WBC count
Term
WBC prouction
Definition
originate from hemocytoblasts
Which produce progenitor cells called myeloid stem cells & lymphoid stem cells
Term
Myeloid Stem CElls
Definition
produce all WBCs except lymphocytes
Term
WBC Development
Definition
WBCs except monocytes develop in bone marro
Term
Monocytes develop into _________ in ____________ tissues
Definition
macrophages

peripheral
Term
Colony Stimulating Factors
Definition
hormones that regulate blood cell populations
Term
Platelets
Definition
Cell fragments involved in clotting system
Nonmammalian vertebrates have thrombocytes (nucleated cells)
Removed by spleen
Term
Thrombocytopenia
Definition
abnormally low platelet count
Term
Thrombocytosis
Definition
Abnormally high platelet count
Term
3 Functions of Platelets
Definition
Release important clotting chemicals

Temporarily patch damages vessel walls

Reduce size of break in vessel wall
Term
Megakaryocytes
Definition
giant cells in bone marrow manufacture platelets from the cytoplasm
Term
Hemostasis
Definition
cessation of bleeding
Term
3 Phases of Hemostasis
Definition
Vascular
Platelet
Coagulation
Term
Vascular Cells
Definition
Endothelial cells contract and expose basement membrane to bloodstream
Term
Endothelial Cells
Definition
Release chemical factors ADP, tissue factor & prostacyclin
Release local hormones
Stimulate smooth muscle contraction and cell division
Term
Endothelial plasma becomes ?
Definition
sticky

it becomes this way because it seals off the blood flow
Term
Platelet Phase
2 portions.
Definition
within 15 seconds after injury

Platelet adhesion
Platelet aggregation
Term
Platelet adhesion
Definition
attachment

to sticky endothelial surfaces
to basement membranes
exposed collagen fibers
Term
Platelet Aggregation
Definition
stick together

forms platelet plug which closes small breaks
Term
Clotting Compounds
Definition
ADP
Thromboxane A2 & Serotonin
Clotting factors
Platelets-dervied growth factor
Calcium ions
Term
Limiting the Growth of Platelet plug
Definition
Prostacyclin
Term
Prostacyclin
Definition
released by endothelial cells

inhibiting platelet aggregation
Term
Coagulation Phase
Definition
Begins 30 seconds or more after injury
Term
Coagulation
Definition
blood clotting
Term
Cascade reactions
Definition
chain reactions of enzymes and proenzymes

Form 3 pathways

Convert circulating fibrogen into insoluble fibrin
Term
________ _________ are required for normal clotting
Definition
Clotting factors
Term
Procoagulants
Definition
Clotting factors
Term
Vitamin __ are essential to clotting process
Definition
K
Term
3 Coagulation Pathways
Definition
Extrinsic

Intrinsic

Common Pathway
Term
Extrinsic Pathway
Definition
Begins in the vessel wall
Outside cell
Damaged cells release tissue factor
Term
Intrinsic Pathway
Definition
Begins with circulating proenzymes
inside bloodstream
Platelet release factors PF-3
Term
Common Pathway
Definition
Where intrinsic & extrinsic pathways converge
Forms enzyme prothrombinase
Converts prothrombin to thrombin
Thrombin converts fibrogen to fibrin
Term
Why is blood shaped like that?
Definition
Biconcave because largest surface area. Important for speed of diffusion faster for oxygen
Term
Aggultination
Definition
when antibody & antigen attach
Term
Myeloid
Definition
makes rest of formed elements that lymphoid doesnt make
Term
____ % of blood is plasma
Definition
55
Term
___ % of plasma is made of water
Definition
90
Term
__________ produces EPO that deal with the production of RBC.
Definition
Kidney
Term
Reticulocyte
Definition
immature red blood cell
1% of blood sample
Term
Kidney processes __ / __ of our blood per minute?
Definition
1/5
Term
Damaged RBC are taken to what organs?
Definition
Spleen
Liver
Bone Marrow
Term
T-Iron
Definition
how carry Iron in the blood & liver

used to check anemia
Term
Bile
Definition
made of emulsified lipids (fats)
Term
Platelet Count
Definition
150,000 - 500,000 per microliter
Term
Vascular Phase
Definition
more active
stop bleeding faster
causes contraction that stops bleeding
Term
Chemotaxis
Definition
cellular function, particularly of neutrophils and monocytes, whose phagocytic activity is influenced by chemical factors released by invading microorganisms
Term
Hemophilia
Definition
continuous bleeding
Factor 8**
Term
Pulmonary Circuit
Definition
carries blood to and from gas exchange surfaces of lungs
Term
Systemic Circuit
Definition
carries blood to and from the body
Term
3 Types of Blood Vessels
Definition
Arteries
Veins
Capillaries
Term
Capillaries
Definition
networks between arteries and veins
Term
Pericardium
Definition
membrane covering the heart
Term
Visceral Pericardium
Definition
inner layer of pericardium
Term
Parietal Pericardium
Definition
outer layer
Term
Pericardial Sac
Definition
Fibrous tissue

Surrounds and stabilizes heart
Term
Where is the parietal cavity located?
Definition
Between parietal & visceral layer

containing pericardial fluid
Term
Coronary Sulcus
Definition
divides atria & ventricles
Term
Anterior & Posterior Interventricular Sulcus
Definition
Separate left & right ventricles
Term
3 Layers of Heart Wall
Definition
Epicardium
Myocardium
Endocardium
Term
Myocardium
Definition
heart muscle
Term
Endocardium
Definition
simple epithelial cells
covers the heart chambers
Term
Incalated Discs
Definition
interconnect cardiac muscles cells
Term
Where is oxygenated blood found?
Definition
left side of heart
Term
Cardiac Skeleton
Definition
bands around the heart
stabilized valves
Electrically insulate ventricular cells from atrial cells
Term
Superior Vena Cava
Definition
head
Term
Chambers are covered in?
Definition
Endocardium
Term
Gap Junction
Definition
action potential able to go through this in the heart
Term
The cell is negative because?
Definition
3 K+ going out of cell
2 Na coming into
Term
Leak Channels
Definition
allow influx of Na+
Term
Auricle
Definition
atrial appendage
Term
Atria
Definition
thin walled
Term
Ventricles
Definition
thick walled
Term
_______ ventricle is thicker
Definition
left
Term
Right Atrium
Definition
collects blood from systemic circuit
Term
Right Ventricle
Definition
pumps blood to pulmonary circuit
Term
Left Atrium
Definition
collects blood from pulmonary circuit
Term
Left Ventricle
Definition
pumps blood to systemic circuit
Term
Atrioventricular Valves
Definition
between atria & ventricles

unidirectional
Term
Semilunar Valves
Definition
pulmonary and aortic semilunar valves
cusps like tripod
Term
Right Atrium Receives
Definition
blood from 3 vessels

superior, inferior, and coronary sinus
Term
Foramen Ovale
Definition
before birth, opening thru interatrial septum
Term
Fossa Ovalis
Definition
after birth this opening closes off
Term
Right Atrioventricular Valve
Definition
tricuspid valve

found right atrium to right ventricle
Term
Left Atrium gathers...
Definition
into left and right pulmonary veins
Term
Coronary Circulation
Definition
supplies blood to muscle tissue of heart

coronary arteries and cardiac veins
Term
Left Coronary Artery
2 Brances
Definition
Circumflex Artery
Anterior interventricular artery
Term
Anastomoses
Definition
when two arteries connect
Term
Coronary Artery Disease
Definition
partial or complete blockage of coronary circulation
caused by plaque in vessels
Term
First symptom of CAD
Definition
angina pectoris
Term
Angina Pectoris
Definition
temporary ischemia develops when the workload of heart increases
Term
Coronary Thrombosis
Definition
crisis develops as a result of thrombus formation at a plaque
Term
Damaged myocardial cells release
Enzymes?
Definition
Cardiac troponin T
Cardiac troponin I
CK-MB
Term
2 Types of Cardiac Muscle Cells
Definition
Conducting System

Contractile Cells
Term
Conducting System
Definition
controls and coordinates heartbeat
stimulates contractionS
Term
Contractile Cells
Definition
produce contractions that propel blood
Term
First part of cardiac cycle
Definition
SA node
Term
SA Node Location
Definition
wall of right atrium
Term
AV node location
Definition
junction between atria and ventricles
Term
Conducting Cells Location
Definition
throughout myocardium
Term
Conducting Cells
Definition
work like a wire to conduct the electrical impulse

in the atrium- internodal pathways
Term
The ONLY electrical conductance between Atria and Ventricle is via the ____ ________
Definition
AV Node
Term
Conducting Path *****
Definition
SA Node -> AV Node -> bundle Branches -> Purkinje Fibers
Term
SA Node
Definition
posterior wall of right atrium
contain pacemaker cell
Term
Pacemaker cells
Definition
determines the heart rate
Term
Systole
Definition
ventricular contraction
Term
Diastole
Definition
ventricular relaxation
Term
____ % of ventricles filled during diastole
Definition
70
Term
First sound S1
Definition
atrial ventricular valve closing
Term
Stroke Volume
Definition
blood ejected by ventricle each beat
Term
Cardiac Output
Definition
amount of blood the heart pumps within 1 minute
Term
AV bundle
Definition
carries impulse to left and right bundle brances and to the moderator band
Term
Purkinje Fibers
Definition
distribute impulse through ventricles
atrial contraction is completed
Term
Bradycardia
Definition
abnormally slow heart rate
Term
Tachycardia
Definition
abnormally fast heart rate
Term
Ectopic Pacemaker
Definition
high rate of action potentials
bypass conducting system
Term
SA node produce a ________ rate of A.P.
Definition
faster
leader
70-100 A.P. per minute
Term
EKG
Definition
recoding electrical events in the heart
Term
Features of ECG
Definition
P wave
QRS complex
T wave
Term
P wave
Definition
atria depolarizes
Term
QRS
Definition
ventricles depolarize
Term
T wave
Definition
ventricles repolarize
Term
Refractory Period
Definition
250-300 msec
30 times longer than skeletal muscle fibers
Term
Role of Calcium Ions in Cardiac Contractions
Definition
increase in calcium ion concentration around myofibrils
1. 20% of calcium ions required for contraction
2. Arrival of extracellular Ca2+
Term
________ __________ ___________ is very sensitive to extracellular Ca2+ concentration
Definition
cardiac muscle tissue
Term
Plateau
Definition
Ca2+ enter
Slow calcium channels
Term
Arterioles
Definition
small branching vessels with high resistance
Term
Venules
Definition
small converging vessels
Term
_____________ cells provide a pathway for spreading excitation through the heart
Definition
Auorhythmic
Term
Conduction Fibers
Definition
rapidly conduct A.P. intiated by pacemaker cells to myocardium
Term
________ ______ are linked by gap junctions
Definition
cardiac cells
Term
Interatrial Pathway
Definition
SA node -> right atrium -> left atrium
Term
Internodal Pathway
Definition
Sa node -> AV node
Term
Ventricular Excitation
Definition
Down bundle of His
Up Purkinje fibers
Term
Stroke Volume
Definition
blood per beat
Term
Average Blood Volume
Definition
5.5L
Term
Hyperpolarization
Definition
more negative inside
Term
The _____________ of the P is masked by the Q, R, S
Definition
repolarization
Term
Sinus Rhythm
Definition
pace generated by SA node
Term
Einthoven Triangle
Definition
Cardiac Muscle Cells
PQRST
Term
Phase 0
Definition
increased permeability to sodium
Term
Phase 1
Definition
decreased permeability to sodium
Term
Phase 2
Definition
increased permeability to calcium
decreased permeability to potassium
Term
Phase 3
Definition
increased permeability to potassium
decreased permeability to calcium
Term
Phase 4
Definition
resting membrane potential
Term
During all 5 phases _______ _______ ________ channels are always open
Definition
voltage gated
Term
_________ inside muscle cells means contraction
Definition
Calcium
Term
Excitation- Contraction Coupling
Definition
8 Events
Term
Mechanical Events of Cardiac Cycle
Definition
Systole

Diastole
Term
Ventricular Filling
Definition
AV valve opens and blood moves from atria to ventricle
Term
Isovolumetric Ventricular Contraction
Definition
ventricle contract
increasing pressure
AV & semilunar vales closed
Blood volume stays the same
Term
Ventricular Ejection
Definition
Pressure ventricles -> Pressure arteries
Semilunar valves open
Term
Isovolumetric Ventricular Relaxation
Definition
Vetricles relax and decreases pressure
AV and semilunar valves closed
Blood volume stays the same
Term
First heart sound
Definition
S1
soft lubb
Closure of AV valves
Term
Second heart sound
Definition
S2
Louder dubb
closure of semilunar valves
Term
Extrinsic Regulation of C.O.
Definition
neural and hormonal
Term
Intrinsic Regulation of C.O.
Definition
autoregulation
Term
____ ______ firing rate determines the H.R.
Definition
SA node
Term
____ ____ = Heart rate
Definition
SA node
Term
SA node under control of _________ __________ ________
Definition
autonomic nervous system
Term
Vagus Nerve -> SA Node
Definition
parasympathetic
Term
Sympathetic Node
Definition
increases conduction velocity through node
Term
Parasympathetic Node
Definition
decrease conduction velocity through node
Term
Glucagon to H.R.?
Definition
increase H.R.
Term
Extrinsic controls of SV
Definition
N.E. binds to Beta 1 receptors
Increases cardiac contractility
Hormones: thyroid hormones, insulin, glucagon increase force contraction
Term
Intrinsic Controls of SV
Definition
changes in EDV = preload
Factors affecting filling time, atrial pressre, Central venous pressure
Term
EDV
Definition
end-diastolic pressure
Term
Increased Sympathetic Effects on Contractibility
Definition
Increased epinephrine release
Increased strength of contraction
Increased rate of contraction
Increased rate of relaxation
Term
Frank Starling's Law
Definition
increase in EDV causes stroke volume to increase
Term
Pathogens
Definition
Viruses
bacteria
Fungi
Parasites
Term
Immunity
Definition
ability to resist infection and disease
Term
Lymphocytes
Definition
part of immune response
identify, attack, and develop immunity to a SPECIFIC pathogen
Term
Lymphatic Vessel
Definition
smallest thickness of outside
there is NO pump, just pressure from organs, tissues, muscles move the lymph through the body
Term
Thoracic Duct
Definition
largest lymphatic vessel
Term
Differentiation
Definition
B cells stay in bone marrow

T cell stay in thymus
Term
B cells make ___________
Definition
antibodies
Term
Lymph always goes into _________ vessel
Definition
afferent
Term
Medulla Cortex
Definition
mostly B cells
Term
Organization of the Lymphatic System
Definition
Lymph
Lymphatic Vessels
Lymphoid Tissues
Lymphoid Organs
Term
Lymphoid Organ
Definition
connective tissue (capsule)
ex. spleen, lymph node
Term
Lymphoid Tissue
Definition
ex. tonsil
Term
Lymph Nodes take ....
Definition
bacteria & fungi out of lymph
Term
Functions of the Spleen
Definition
Phagocytes and other lymphcytes in the spleen
Identify and attack damaged and infected cells
Term
3 Functions of the Spleen
Definition
Removal of abnormal blood cells by phagocytosis

Storage of iron recycled from RBC

Initiation of immune responses by B cells and T cells
Term
Lymphatic Capillaries made of ___________ cells
Definition
endothelial
Term
Base of the thoracic duct expands into the _________ _______
Definition
cisterna chili
Term
Cisterna Chili
Definition
receives lymph from right and left lumbar trunks

Intestinal trunk
Term
Opsinization
Definition
allows phagocytes to engulf pathogen
Term
What thing causes a fever in blood?
Definition
Interleukin 1

Pyrogen
Term
Lymphedema
Definition
blockage of lymph drainage from a limb
causing swelling
Term
Types of Lymphocytes
Definition
T cells
B cells
NK cells
Term
T & B cells
Definition
migrate through the body to defend peripheral tissues
Term
Cytotoxic T Cells
Definition
fight with foreign bodies
Term
Memory T Cells
Definition
give us immunity to foreign substance, if contacted with again.
Term
Helper T Cells
Definition
stimulate function of T & B cells (immunity)
Term
Suppressor T Cells
Definition
inhibit function of T cells and B cells
Term
Regulatory T Cells
Definition
helper and suppressor T cells
control sensitivity of immune response
Term
B cells
Definition
when fighting antigen it converts to plasma cell to create antibodies
Term
NK cells
Definition
responsible for surveillance
attacking virus infected cells and cancer cells
Term
Lymphopoiesis
Definition
creation of lymphocytes
within:

bone marrow
thymus
lymphoid tissues
Term
MALT
Definition
Mucosa-Associated Lymphoid Tissue
associated with digestive system
Term
Aggregated Lymphoid Nodules
Definition
clustered deep to intestinal epitelial lining
Term
Appendix
Definition
made up of a mass of fused lymphoid nodules
Term
5 Tonsils
Definition
L & R tonsils
Pharyngeal tonsil (adenoid)
2 lingual tonsils
Term
Lymphoid Organs
Definition
Lymph nodes
Thymus
Spleen
Term
Afferent Lymphatics
Definition
carry lymph from peripheral tissues to lymph node
Term
Efferent Lymphatics
Definition
leave lymph node at hilum
away
Term
Hilum
Definition
shallow indentation where blood vessles and nerves reach the lymph node
Term
Lymphadenopathy
Definition
chronic or excessive enlargement of lymph nodes
possibly indicate infections, endocrine disorders or cancer
Term
Thymus is divided into ____ lobes
Definition
2
Term
The thymus __________ after puberty
Definition
atrophies
Term
T cells migrate into the __________
Definition
medulla
Term
Spleen is attached to the stomach by _________ _______
Definition
gastrosplenic ligament
Term
Splenic Circulation empties into ___________ ______
Definition
trabecular veins
Term
Forms of Immunity
Definition
Innate
Adaptive
Active
Passive
Term
Active
Definition
antibodies developed after exposure to antigen
Term
Naturally Acquired Active
Definition
through environmental exposure to pathogens
Term
Artificially Induced Active
Definition
through vaccines
Term
Passive Immunity
Definition
antibodies transferred from another being
Term
Naturally acquired passive
Definition
antibodies acquired from the mother
Term
Artificially induced passive
Definition
by an injection of antibodies
Term
Innate Defenses
Definition
Skin
Phagocytes
NK cells
Interferons
Complement System
Inflammatory Response
Fever
Term
Phagocytes
Definition
attack and remove dangerous microorganisms
Term
Chemotaxis
Definition
attracted or repelled by chemicals in surrounding fluids
Term
Adhesion
Definition
when phagocyte attaches to a target
Term
Microphages
Definition
neutrophil and eosinophil

leave bloodstream
Term
Macrophages
Definition
derived from monocytes
distributed throughout the body
Term
FIxed macrophages
Definition
aka histiocytes
Microglia
Kupffer Cells
Term
Membrane Attack Complex
Definition
five complement proteins join to form this
Term
Free macrophages
Definition
travel throughout the body

alveolar macrophages (dust cells)
Term
Immunological Surveillance
Definition
constantly monitors tissues

by NK cells

Vesicles release proteins called perforins
Term
Immunological Escape
Definition
some cancer cells avoid NK cells
Term
Interferons
Definition
proteins released by activated lymphocytes and macrophages and trigger production of antiviral proteins in normal cells
Term
3 Types of Interferons
Definition
Alpha
Beta
Gamma
Term
Alpha Interferons
Definition
produced by leukocytes
stimulate NK cells
Term
Beta interferons
Definition
secreted by fibrocytes
slow inflammation
Term
Gamma interferons
Definition
secreted by T cells and NK cells
Stimulate macrophage activity
Term
Cytokines
Definition
chemical messengers released by tissue cell

coordinate local activities
Term
Complement Proteins
Definition
assist antibodies in destruction of pathogens
Two pathways
Term
2 Pathways of Complement System
Definition
Classical pathway

Alternate Pathway
Term
Alternative Pathway
Definition
slow method exposed to antigen
ex properdin
Term
Cell mediated immunity
Definition
T cells
cells involved in specic defenses
Term
Antibody mediated immunity
Definition
B cells
Term
Humeral
Definition
B cells
Term
Activated B Cell
Definition
plasma cell
Term
IgG
Definition
makes 80% of all antibodies
able to pass through placenta
Term
IgE
Definition
important for allergies
Term
IgM
Definition
first antibody secreted after antigen encountered
Term
IgA
Definition
glandular secretion (breast milk, tears)
Term
___ stays longer in the system
Definition
IgG
Term
Functions of Antigen-Antibody Complexes
Definition
1. Neutralization of antigen binding sites
2. Precipitation and agglutination - formation of immune complex
3. Activation of complement
4. Attraction of phagocytes
5. opsonization increasing phagocyte efficiency
6. Stimulation of inflammation
7. Prevention of bacterial and viral adhesion
Term
Secondary Response Antibody
Definition
very rapid increase in IgG antibody
Term
MHC
Definition
protein at surface of cells
Term
Class I
Definition
in all membranes of all cells that have a nucleus
Term
Function of Class I
Definition
grab abnormal protein and bring to surface so immune can tell that cell/infection needs to be killed
Term
APC
Definition
antigen presenting cell
ex. Macrophages
Able to engulf bacteria
Term
Class II
Definition
found in membranes of APC's
Term
More than ___ types of CD markers
Definition
70
Term
This marker is found in all T cells
Definition
CD3
Term
Two important Markers
Definition
CD8 & CD4
Term
CD4
Definition
found on helper T cells
Term
CD8 Markers
Definition
found on cytotoxic cells and suppressor T cells
Term
Cytotoxic T Cells
Definition
seek out and immediately destroy target cells
secrete lymphotoxin to destroy target cell
Term
Memory T Cell
Definition
produced by cytotoxic T cells

stays in circulation
Term
Primary Response
Definition
takes about two weeks to develop peak antibodies
Term
Mother's Milk Provides ______ antibodies
Definition
IgA
Supporting users have an ad free experience!