Term
| What is the function of the lymph system? |
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Definition
| The lymph system retrieves excess tissue fluid (plasma that leaks out of the blood vessels) and filters it and cleans it and returns it to the blood |
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Term
| What are the four characteristics of lymphatics? |
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Definition
Their wall contains three layers, just like blood vessels.
Lymph capillaries are highly permeable.
They contain valves.
Connecting vessels are NOT easily identified in dissection. |
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Term
| Lymph capillaries differ from blood capillaries in what three ways? |
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Definition
| They are different in that they are blind ended, more permeable, carry lymph instead of blood. |
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Term
| Lymph capillaries are similar to blood capillaries in what way? |
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Definition
| They are similar in that their walls consist of endothelial cells |
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Term
| What are the five giant lymph nodes? |
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Definition
1. TONSILS and ADENOIDS
2. THYMUS
3. PAYER’S PATCHES
4. APPENDIX
5. SPLEEN |
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Term
| What is the disease which is cancer of the lymph nodes? |
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Definition
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Term
| Do the lymph nodes feel tender in this disease? |
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Definition
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Term
| Which disease involves the Epstein-Barr virus attacking B-lymphocytes; characterized by inflammation of lymph vessels (lymphangitis)? |
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Definition
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Term
| What condition is the accumulation of fluid in connective tissue? |
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Definition
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Term
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Definition
It is not just an enlarged lymph node.
It is an infected lymph node that contains a large number of pathogens that are trapped in the node but not destroyed.
It is not cancer. |
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Term
| What three mechanisms help move lymph through the lymphatic vessels? |
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Definition
1)Body movements during exercise.
2)Contraction of skeletal muscles.
3)Contractions of smooth muscle in the wall of the lymph vessels. |
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