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10 Cards in this Set
- Front
- Back
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functions of the lymphatic system
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-drains excess interstitial fluid and plasma proteins from tissue space
-transporting lipids and vitamins that you just took into body (digestive system) -immune responses (recognizes abnormal cell and kills them) |
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lymph
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looks like plasma, but no RBC, less protein and more fat
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Primary organs
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-red bone marrow
-thymus -make lymphocyes (WBC) or make them immunocompitant |
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Secondary organs
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-spleen
-lymph nodes -diffuse lymphatic tissue (tonsils, peyers patches) |
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lymphatic capillaries
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-any fluid in interstitial space can flow into lymphatic capillaries
-flows high to low pressure, so capillaries have low pressure -highly permeable, anything can enter -have anchoring filaments that keep them open all the time so they don't collapse under pressure |
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lymphatic vessels
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-like blood veins, but thinner
-more flap like valves to prevent backflow -in limbs and skin, follow veins -in torso, follow arteries |
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lymphatic trunks
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-lumbar: drains lower limbs (2)
-intestinal: drains abdominal area (digestive) (1) -bronchomediastinal: thoracic cavity (2) -subclavian: arms (2) -jugular: neck and head (2) |
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collecting ducts
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-3 vessels drain into R. lymphatic duct (R. jugular, R. subclavian, R. broncomediastinal)
-R. lymphatic duct drains into R. subclavian vein -cisterna chyli: 2 lumbar and 1 intestinal |
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how much lymph is moved through the system per day?
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3L lymph/day
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flow of lymph
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-skeletal muscles and respiratory move lymph (same as venous return) and smooth muscles in lymph vessels
-lymphatic vessels empty into subclavian veins |
