| Lymphatic fuctions | Lymphatic capillaries | Vessels, trunks, and ducts |
|---|---|---|
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What is the first function of the lymph system?
Transports and houses lymphocytes and other immune cells
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What are the components of lymph?
Water, dissolved solutes, and small amount of protein
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What are lymphatic vessels fed by? Where are lymph vessels located? What tunics do lymph vessels have? How does lymph move? Why do vessels connect to lymph nodes?
lymphatic capillaries; Adjacent to arteries and veins; intima, media, externa; skeletal muscles & respiratory pumps in veins; lymph filtration
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What is the second function of the lymph system?
Returns excess fluid in body tissue to blood to maintain blood volume
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What is one characteristic of capillaries?
Small, closed-ended vessels that absorb interstitial fluid
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What are lymph trunks fed by? Where do jugular trunks drain lymph? What do subclavian trunks drain? What drains thoracic structures? What do intestinal trunks drain? What do lumbar trunks drain?
Lymph vessels; head & neck: upper limbs, breasts, & superficial thoracic wall: bronchomediastinal; abdominal structures; lower limbs, abdominopelvic wall. & pelvic organs
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What are the lymph system components?
Vessels, lymphatic issues and organs
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What is another characteristic of capillaries?
interspersed around most blood capillaries; absent in avascular tissues red marrow, spleen and CNS
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What are lymph ducts fed by? What are the 2 ducts?
lymph trunks; right lymph & thoracic;
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What fluid is transported within lymph vessels?
Lymph is the fluid
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What are lymph capillaries larger than and what do lymph capillaries lack and what are their walls made of?
Blood capillaries; basement membrane; overlapping endothelial cells
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What is a characteristic of lymph?
Some fluid leaves blood capillaries and is not reabsorbed by them
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What are the lymph capillaries in the GI tract called? What pressure pushes interstitial fluid into the capillary?
Lacteals; hydrostatic pressure
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