Lymphatic System Flashcards
What is the pressure pushing fluid out if capillaries
10 mm Hg
What end of capillary is fluid pushed out
Arterial end
What pressure pushes fluid back into capillaries
8 mm Hg
What end of capillary are fluids pushed back in
Venous end
Does more fluid enter or leave capillaries
Leave
3L per day
What happens to extra fluid in tissues
It is picked up by lymphatic system
Where are lymph capillaries
In loose connective tissue
Between tissue cells and blood capillaries
What has to occur for lymph capillaries to absorb leaked fluid
Openin of one way mini valves
Where does lymph return to venous system
The great veins in the neck
Junction of internal jugular and subclavian veins
How do lymph nodes help the body
Remove foreign material from the lymphatic system
Initiate immune response
What are the 2 main ducts
Right lymphatic
Thoracic
Where does cisterna chyle drain into
Thoracic duct
Where are lymph nodes
Embedded in connective tissue
Along lymphatic vessels
What is cortex made of
Follicles
Germinal centers
B and T cells
Where do macrophages reside in the lymph node
Medulla
Where do B cells proliferate in lymph node
Germinal centers
Where are germinal centers
The middle of a lymph node follicle
What is the largest lymphoid organ
Spleen
What is the spleen made of
White pulp
Red pulp
What is the function of white pulp
Site or lymphocyte proliferation
Immune serveillence
What is the function of red pulp
Where aged RBC are destroyed and recycled
What is stored in the spleen
Platelets
Monocytes
What causes T cells to become immunocompetent
Thymus
What does the cortex of the thymus contain
Packed lymphocytes
Scattered macrophages
What does MALT stand for
Mucosa associated lymphatic tissue
What Is the function if malt
Protect the digestive and respiratory system
What are 2 specific malt examples
Tonsils
Peyers patches
Where are peyers patches found
Distal small intestine
Where are some lymphoid tissues located
Tonsils
Patches
Lymphoid nodules of bronchi
What encapsulates a node follicle
Dentritic cells
