Term
| What are the 3 lymphatic tissues present in the body |
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Definition
BALT- Bronchus (BiG Man)
GALT- Intestine
MALT- Mucosa |
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Term
| Where in the body are lymphatic nodules? |
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Definition
| Lymph nodes, Tonsils, appendix, peyer's patches |
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Term
| What is the function of the tonsils? |
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Definition
| Guard against ingested or inhaled pathogens before they enter the pharynx |
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Term
| What is the function of the spleen? |
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Definition
i) Immunosurveillance
ii) RBC homeostasis
iii) Stabilizing blood volume |
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Term
| The spleen is comprised of 2 different aggregations of cells. What are the names of these aggregations, where are they found in the spleen, and what types of cells they are comprised of? |
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Definition
| The two different groups of cells are white and red pulps. White pulp is found along the small branches of the splenic artery and in sections of arterioles. Mass amounts of lymphocytes pass through these Red pulp ARE permeable sinuses which mechanically seperate RBC's by only allowing passage of flexible (healthy) RBC's. |
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Term
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Definition
Top to bottom erased structures:
1) Trabecula
2) Subcapsular sinus
3) Lymphatic nodule
4) Germinal Center
5) Medullary cord |
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Term
| What about lymph nodes makes them excellent locations for immuno-surveillance? |
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Definition
| Lymph nodes have many afferent lymphatic vesses, but very few efferent vessels (1-3). |
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Term
| Where do T lymphocytes exit the blood and into the parenchyma (organ tissue) of lymph nodes? |
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Definition
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Term
| What are HEV's and what is their function? |
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Definition
| HEV's are High Endothelial Venules. These venules express integrins which provide a surface for naive lymphocytes to attach to. This surface enables lymphocytes circulating in the blood to enter the lymph node. |
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Term
| What are the two main lymph node superficial regions routinely palpated by physicians? |
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Definition
| Thoracic and abdominal (Plenty more but these were boxed) |
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Term
| What is the name of the sack that contains the heart and the roots of the great vessels? |
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Definition
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