Lymphatic System
Anatomy
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Function
Immune defenses
Disorders
Return clean fluids and leaked proteins back to the blood
Drain excess fluid from the tissue
Play an essential role in the body defenses and resistance to diseases.
Lymphatic vessels
Lymphoid organs
Efferent lymphatic vessel
Lymph trunks
Thymus
Bone Marrow
Spleen
Lymph node
MALT
Includes peyers pathches,tonsils,appendix and any other small collections of lymphoid tissue
Important in protection of the digestive and reproductive tracts.
Lymph ducts
Afferent lymphatic vessel
Lymph capillaries
Walls overlap to form flap-like mini-valves which allows lymph to enter/Are anchored to C.T by filaments
Brings lymph into the lymph node
Monitors and filters lymph
Moves lymph away from the lymph node
Collects lymph from collecting vessels
Returns fluid to circulatory vein(subclavin vein)
Peyer's Patches
Tonsils
Lymphocytes
Found in walls of small intestine/Captures and destroys bacteria in the intestine
Site of T lymphocyte and produces thymosin
Site of blood cells and immature lymphocyte formation and B lymphocyte maturation
Filters blood/destroys worn out cells/Forms blood cells in the fetus
Trap and remove bacteria and foreign materials
Mucosa associated lymphatic tissue