Term
| What is the principal function of the lymphatic system? |
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Definition
| collect excess extracellular fluid from tissues and return it to the cardiovascular system |
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Term
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Definition
| fluid in the lymphatic vessels |
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Term
| What is the function of the lymph nodes in regards to cleaning? |
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Definition
| remove cellular debris and microorganisms from lymph |
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Term
| What is the function of the lymph nodes in regards to the immune system? |
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Definition
| Serve as a staging area for B- and T- lymphocytes against invading microorganisms |
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Term
| Where does the lympahtic system not run? |
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Definition
| central nervous system and bones |
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Term
| What does teh lymphatic system ran parallel to? |
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Definition
| blood vessels of teh cardiovascular system |
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Term
| What would happen without the lymphatic system? |
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Definition
| fluid would accumulate in the tissue of the body causing edema, depriving cardiovascular system of sufficient blood volume to operate properly |
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Term
| What is different between the lymphatic system and the cardiovascular system? |
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Definition
| Cardiovascular system is two-way (arteries and veins), lymphatic is one way (blind-ended capillaries) |
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Term
| What happens as fluid accumulates in the tissue? Step 1 |
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Definition
| Extracellular fluid pressure rises, gaps open between the squamous epithelial cells of the lymphatic capillaries |
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Term
| What happens as fluid accumulates in the tissue? Step 2 |
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Definition
| Lymphatic capillaries carry fluid to larger lymphatic vessels |
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Term
| What happens as fluid accumulates in the tissue? Step 3 |
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Definition
| Large vessels merge to form still larger vessels and continue to carry collected fluid |
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Term
| What happens as fluid accumulates in the tissue? Step 4 |
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Definition
| Network of vessels culminates in two large vessels |
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Term
| What happens as fluid accumulates in the tissue? Step 5 |
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Definition
| THoracic duct and right lymphatic duct deliver the lymph to the left and right subclavian veins |
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Term
| What are the two large vessels the lymphatic network culminate into? |
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Definition
| Thoracic duct and right lymphatic duct |
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Term
| What is the cleaning function of lymph nodes? |
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Definition
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Term
| What is primarily responsible for the filtering of lymph in the lymph nodes? |
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Definition
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Term
| Where are macrophages found? |
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Definition
| In sinuses found in the lymph nodes |
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Term
| What is the immune system function of the lymph nodes? |
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Definition
| Storage and proliferation sites for B and T lymphocytes |
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Term
| What are the most important players in the adaptive (specific) immune defenses? |
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Definition
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Term
| How are the macrophages and lymphocytes related? |
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Definition
| After macrophages have engulfed a microorganism, they "present" themselves to lymphocytes, resulting in destruction/disabling of microorganism |
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