Module 17 - Lymphatic system and immunity Flashcards
In what direction does the lymphatic system carry fluid?
in one direction, away from the tissue
maintenance of fluid balance
lymphatic system absorbs fluid left behind from the capillaries and returns it to the bloodstream
absorption of fats
lymphatic vessels in small intestine absorb fats and fat-soluble vitamins
immunity
lymph nodes and other lymphatic organs filter lymph to remove microorganisms and foreign particles
what type of cells comprise the lymphatic vessel wall
epithelial cells
how does fluid enter the lymphatic vessels
it enters between overlapping epithelial cells
what role do protein filaments play
they anchor the vessels to surrounding cells that prevents them from collapsing
The right lymphatic duct drains lymph from which parts of the body into which vein?
upper right quadrant of the body into the right subclavian vein
the thoracic duct drains lymph from which parts of the body into which vein?
drains lymph from the rest of the body into the left subclavian vein
red bone marrow
primary lymphatic organ- provides location for B and T lymphocytes to mature
thymus
primary lymphatic organ- promote development of lymphocytes
lymph nodes
secondary lymphatic organ - cleansing lymph, and site for final maturation for some lymphocytes and monocytes
tonsils
secondary lymphatic organ - lymphoid tissue, forms protective circle at the back of the throat
spleen
secondary lymphatic organ- immunity, destruction of old red blood cells, blood storage and hematopoiesis in infants
First line of defense (external barriers)
skin and the mucous membrane
