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A&P II Exam 1
Lymphatic System, Immune system
19
Anatomy
Undergraduate 3
09/01/2015

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Term
Lymphatic System
Definition
Returns fluids that have leaked from the blood vascular system back to the blood.
Term
Lymph
Definition
the fluid contained in lymphatic vessels
Term
lymphoid organs and tissues
Definition
provide structural basis of the immune system
Term
Lacteals
Definition
A special set of lymphatic capillaries that transport absorbed fat from the small intestine to the bloodstream.
Term
Chyle
Definition
Fatty lymph that drains from the fingerlike villi of the intestinal mucosa
Term
right lymphatic duct
Definition
drains lymph from the right upper limb and the right side of the head and thorax
Term
thoracic duct
Definition
receives lymph from the rest of the body, other than from the right upper limb and the right side of the head and thorax
Term
cisterna chyli
Definition
collects lymph from the two large lumbar trunks that drain the lower limbs and form the intestinal trunk that drains the digestive organs.
Term
lymphocytes
Definition
the main warriors of the immune system, arise in red bone marrow. Eventually mature in B-cells and T-cells
Term
plasma cells
Definition
daughter cells that secrete antibodies into the blood
Term
macrophages
Definition
play a role in body protection and the immune response by phagocytizing foreign substances and by helping to activate T cells.
Term
dendritic cells
Definition
capture antigens and bring them back to the lymph nodes
Term
reticular cells
Definition
fibroblast-like cells that produce the reticular fiber stroma
Term
stroma
Definition
the network that supports the other cell types in lymphoid organs and tissues
Term
Lymphoid tissues
Definition
houses and provides a proliferation site for lymphocytes, furnishes an ideal surveillance vantage point for lymphocytes and macrophages
Term
reticular connective tissues
Definition
dominates all the lymphoid organs except the thymus
Term
diffuse lymphoid tissues
Definition
a loose arrangement of lymphoid cells and some reticular fibers; is found in virtually every body organ
Term
lymphoid follicles
Definition
solid spherical bodies consisting of tightly packed lymphoid cells and reticular fibers
Term
lymph nodes
Definition
cluster along the lymphatic vessels of the body
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