Anatomic terms in the lymphatic system
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Created by:
Caitylu on September 27, 2011
Subjects:
medical and scientific terminology
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16 terms
Terms | Definitions |
|---|---|
 thymus | primary gland of the lymphatic system, located within the mediastinum, that helps to maintain the body's immune response by producing T lymphocytes |
| spleen | organ between the stomach and the diaphragm that filters out aging blood cells, and provide an environment for lymphocytes to initiate immune response |
| lymph | fluid that is circulated through the lymph vessels |
| lymph capillaries | microscopic vessels that draw lymph from tissues to the lymph vessels |
| lymph vessels | vessels that receive lymph from the lymph capillaries and circulate it to the lymph nodes |
| lacteals | specialized lymph vessels in the small intestine that absorb fat into the bloodstream (lacteus=milky) |
| chyle | white or pale yellow substance in lymph that contains fatty substances absorbed by the lacteals |
| lymph nodes | many small, oval structures that filter lymph from the lymph vessels; major locations include the cervical, axillary, and inguinal regions |
| lymph ducts | collecting channels that carry lymph from the lymph nodes to the veins |
| right lymphatic duct | receives lymph from the right upper part of the body |
| thoracic duct | receives lymph from the left side of the head, neck, chest, abdomen, left arm, and lower extremities |
| immunity | process of disease protection induced by exposure to an antigen |
| antigen | a substance that, when introduced into the body, causes the formation of antibodies against it |
| antibody | a substance produced by the body that destroys or inactivates an antigen that has entered the body |
| active immunity | a long-lasting immunity that results from stimulating the body to produce its own antibodies; developed either naturally, in response to an infection, or artificially, in response to the administration of a vaccine |
| passive immunity | a short-lasting immunity that results from foreign antibodies that are conveyed either naturally, through the placenta to a fetus, or artificially, by injection of a serum containing antibodies |
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