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9 Cards in this Set
- Front
- Back
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What is meant by "Defense in depth" with regard to the lymphatic system?
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The body has multiple layers of defense against invasion.
Specifically: 1. Barriers 2. Inflammation 3. Lymph system 4. Fever 5. Specific immunity |
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What are some examples of barriers that the body has against infection?
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Skin, sweat, hair/cillia, tears, saliva, mucus, wax, urine acidity, oil, stomach acid, vaginal acidity
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What is inflammation, specifically? How does pus relate to this?
How do anti-histamines interact with inflammation? |
Area is red, hot, swollen, and hurts due to increased blood flow to area - which produces increased white blood cells on site
Pus is localized version of this; specifically gathering of dead white blood cells after having phagocytized infection Anti-histamines decrease this effect, which decreases discomfort, but also decreases efficacy |
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What is lymph?
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Lymph is blood plasma, once it is out of the blood
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What is the lymph system?
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The lymph system is a fluid drainage system composed of lymph nodes, which contain white blood cells, that act as filters as lymph passes through.
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What are the three major lymph nodes of the body? What areas of the body do they serve?
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Cervical (tonsils) - serve the head
Axillary - serve the arms Groin - serve the legs |
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Why do cancer specialist often spend a considerable amount of time examining lymph nodes?
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Inflamed nodes are sometimes a warning of metastasizing cancer cells from a nearby area
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Why is fever sometimes a good thing for your body to produce?
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Increased heat (within limits, over 104 or longer than a week, see a doctor) = increased metabolism of WBC
Thus saying of "starve a cold, feed a fever" - fever uses lots of energy |
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What are the two different types of lymphocytes produced by your body as a measure of specific immunity?
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a) B cell - grow in bone, then travel to lymph node
b) T cell - matures in thymus gland, then travels to lymph node |
