Term
| The lymphatic is a one-way system. True of False? |
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Definition
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Term
| What are the functions of the lymphatic system? |
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Definition
1. To transport leaked fluid back into the blood system
2. To defend the body against diseases |
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Term
| How is fluid leaked into body tissues? |
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Definition
| Through hydrostatic pressure and mini valves in lymph capillaries. |
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Term
| What is the process of fluid absorption? |
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Definition
| fluid->lymph capillaries->lymphatic collecting vessels->lymph nodes->right thoracic duct of the Thoracic duct into the venous system |
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Term
| Where do the lymphatics of the head, neck, and right arm drain into, in order to get back into the blood stream? |
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Definition
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Term
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Definition
| Drains lymph from everywhere in the body excluding the right arm, head, and neck. |
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Term
| How does lymph move around the body? |
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Definition
| Muscle and respiratory pumps, and smooth muscle contraction in larger lymphatic vessels. |
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Term
| Tell me about lymph nodes: |
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Definition
| They are part of the lymphatic system and have four entry point but only two exit point. Lymph nodes contain macrophages (digest harmful substances) and lymphocytes (involved with immunity). |
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Term
| What are the lymphatic organs? |
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Definition
| The spleen, Peyer's Patches (small intestine), the tonsils, thymus, and appendix. |
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Term
| What is the function of the spleen? |
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Definition
| Cleans the blood, responsible for RBC break down, stores platelets, and can contract if an accident has occurred and the body is loosing blood. |
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Term
| What are the two lines of body defence? |
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Definition
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Term
| What are innate defences? |
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Definition
The skin-sebum, keratin, melatonin, acid-mantle, mucous membranes, cilia, gastric juices, lacrimal secretion (tears), nasal hair, saliva.
Cellular and chemical: phagocytes, natural killer cells (lyse cancer and virus cells), the inflammatory response, fever, acidic fluids, interferons, and complement. |
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Term
| What are the four cardinal signs of inflammation? |
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Definition
1. Redness from increased blood flow to the area
2. Heat from increased blood flow, which is warm
3. Swelling from leaky capillaries
4. Pain from leaky capillaries activating pain receptors |
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