Shared Flashcard Set

Details

Lymphatic System LG
stuff about lymphatic system..... go figure!
26
Anatomy
Undergraduate 3
12/04/2011

Additional Anatomy Flashcards

 


 

Cards

Term
what makes up the lymphatic system?
Definition
lymphatic vessels and lymphoid tissue
Term
What do lymphatic vessels contain?
Definition
Lymph!!
Term
There are 2 lymphoid things: name them!
Definition
Lymphoid tissue and organs
Term
What does the lymphatic system do?
Definition
produce, maintain, distribute lymphocytes
Term
lymphatic capillaries
what are found in the digestive tract? and what do they do?
Definition
-small
-have thinner walls than capillaries
Lacteals are found in the digestive tract; they carry lipids (pick up absorbed fats)!
Term
What do valves do in lymphatic vessels?
Definition
they keep unidirectional flow (keep fluid going the same direction)
Term
what are lymph nodes?
Definition
organized groups of white cells
Term
what evil disease uses the lymphatic system?
Definition
cancerrrrrrrr
>:-ZZ
Term
what are major lymph vessels?
HELP ON THIS ONE!
Definition
superficial lymphatics in subcutaneous tissue and below muscle serious membranes
&
Deep lymphatics
Term
Deep lymphatics
name the ducts found here:
what duct is found here? what about it is special?
Definition
thoracic duct & right lymphatic duct
thoracic duct -biggest of lymphatic vessels
starts at cisterna chyli and empties into L. subclavian
Term
Right lymphatic duct
Definition
smaller
Term
Describe the drainage of the the thoracic duct:
the right lymphatic duct:
Definition
Thoracic drains: clockwise from 12:00-9:00
left side of body, arm, legs, and head up to the ribcage
Right Lymphatic: Drains clockwise 9:00-12:00; Drains right side of head, arm and right half of torso (from head to ribcage)
Term
If you disrupt the deep lymphatic ducts:
Definition
you will cause a fluid disruption
Term
What are the types of lymphocytes?
Definition
T Cells, B cells, Nk cells
Term
T cells: name 4 types and what they do
T:CHMS
Which type does cell-mediated immunity?
Definition
1. Cytotoxic cells: attack foregin cells or viral damaged cells
2. Helper T Cells: enhance the immune response
3. Memory T Cells: long lasting for subsequent infections; they remember how to attack and what cells are bad. They're made when you're exposed to sickness and they remember it if you get it again (give you stronger/faster response)
4. Suppressor T Cells: coordinate immune response (suppress immune system)

The Cytotoxic Cells do cell-mediated immunity: the cell itself attack the pathogen (mature T cells-->assassinate)
Term
What do B cells do?
What do they make?
Definition
-differentiate into Plasma cells
-(Plasma cells) produce antibodies "immunoglobulins"
Memory B Cells (long lasting immunity)
Term
What does antibody-mediated immunity?
Definition
B cells--> differentiate into Plasma cells, make antibodies (immunoglobulins) and do Antibody-mediated immunity
Term
NK cells
do what?
Definition
Natural Killer Cells
Police peripheral tissues
Immunological surveillance
Term
Lymphopoiesis
start where?
mature where?
Definition
Start in bone marrow
Mature in thymus
Others: spleen?!
Term
Lymphoid Tissue: whats in it?
Definition
lymph nodules, lymph organs
Term
Lymph Nodules
-what is it?
-3 examples
Definition
don't have a capsule (they're just a clump of cells)
-densely packed lymphocytes
-Peyer's Patches in intestine (respond to pathogens ingested traveling along intestine)
-Tonsils in Pharynx (& oral cavity--> collection of lymphoid tissue)
-also in appendix
Term
What happens to lymph nodes when you get infections, burns, etc.
Definition
They swell
Term
Lymph Organs: have what?
3 examples
Definition
a capsule
-lymph nodes
-thymus
-spleen
Term
Lymph Nodes
Definition
bean shaped
-has efferent and afferent lymphatics
e.g. axillary, popliteal, inguinal, etc.
Term
Thymus
Definition
-behind sternum
-composed of 2 lobes
-stem cells are in the cortex
-mature cells move to cortex
T cells aren't active until released

Thymus is part of immunity and helps cells mature
Term
Spleen
Definition
largest lymphoid organ
-attached by gastrosplenic ligament
red puplp: concentrations of red cells (erythrocytes)
white pulp: collections of lymphocytes

-stores blood in case of emergency
-removes old blood cells, abnormal/damaged RBC's
Supporting users have an ad free experience!