Term
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Definition
| elaborate system of drainage vessels that collect the excess protein-containing interstitial fluid and returns it to the bloodstream |
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Term
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Definition
| term for the fluid collected by a lymphatic vessel |
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Term
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Definition
| beginning of the lymphatic vessel. blind ended. usually found in loose connective tissue. |
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Term
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Definition
| flap-like opening on the lymphatic capillary allowing for its impressive permeability. |
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Definition
| highly specialized lymphatic capillary in the intestinal mucosa. also take up fats. fluid looks like 'milk' |
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Term
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Definition
| fatty lymph taken up by lacteals. |
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Term
| lymphatic collecting vessels |
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Definition
| term for tubes that carry lymph through the body once it leaves the lymphatic capillaries. |
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Term
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Definition
| formed by the union of collecting vessels. lumbar, brachomediastinal, subclavian, jugular, intestinal |
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Definition
| drains right arm and half of face. smaller than other major duct. |
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Term
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Definition
| major duct that drains most of the body. |
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Term
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Definition
| enlarged sac that collects fluid from the two large lumbar trunks. |
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Term
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Definition
| 'warriors' of the immune system. cells that act in specific immunity |
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Term
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Definition
| anything the body detects as being foreign |
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Term
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Definition
| 2 types of cells that convey specific immunity |
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Term
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Definition
| daughter cells secreted by B cells that secrete antigens |
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Term
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Definition
| these cells phagocytize foreign cells and activate T cells |
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Term
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Definition
| spiny-looking cells that capture antigens and bring them back to the lymph nodes |
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Term
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Definition
| fibroblast-looking cells that produce the reticular fiber 'stroma' |
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Term
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Definition
| reticular fiber produced by reticular cells that supports other cells types in lymphoid organs |
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Term
| reticular connective tissue |
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Definition
| type of connective tissue that lymphatic tissue is made out of |
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Term
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Definition
| scattered reticular tissue elements comprise this 'package' type |
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Term
| lymphoid nodules (sometimes form PART of a lymph nodes) |
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Definition
| solid, spherical bodies that are packaged tightly together; made of reticular elements and lymphatic cells |
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Term
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Definition
| lighter staining center in a lymph node. dendritic cells and b cells reside here. area enlarges rapidly when b cells dividing and releasing plasma cells |
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Term
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Definition
| principle lymphatic organ of the body |
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Term
| afferent lymphatic vessels |
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Definition
| lymph enters on convex side through these |
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Term
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Definition
| lymph passes through this area within lymph nodes |
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Term
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Definition
| indented region on concave side of lymph node that lymph leaves from |
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Term
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Definition
| aggregates of lymphatic tissues within the body |
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Term
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Definition
| areas of reticular tissues in spleen composed mainly of lymphocytes suspended |
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Term
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Definition
| areas of splenic tissue rich in blood but not lymphocytes |
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Term
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Definition
| regions of reticular connective tissue rich in macrophages |
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Term
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Definition
| secretes hormones that cause T lymphocytes to become immunocompetent |
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Term
| thymic (Hassall's) corpuscles |
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Definition
| circular keratinized epithelial cells in thymus. site of lymphocyte destruction. |
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Term
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Definition
| simplest lymphoid organs that form ring around pharynx |
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Term
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Definition
| areas in tonsils where deep invaginations form dead ends. bacteria collect ehre and enter lymphoid tissue. then get destroyed and body has 'memory' for these invaders |
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Term
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Definition
| isolated clusters of lymphoid follicles surrounding intestine and in wall of appendix |
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Term
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Definition
| protects passages open to the exterior from never-ending onslaughts of foreign matter entering them |
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