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16 Cards in this Set
- Front
- Back
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thymus
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organs of the lymphatic system
primary gland of the lymphatic system, located within the mediastinum, that helps to maintain the body's immune response by producing T lymphocytes |
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spleen
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organs of the lymphatic system
organ between the stomach and the diaphragm that filters out aging blood cells, removes cellular debris by performing phagocytosis, and provides an environmrnt for lymphocytes to initiate immune responses |
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lymph
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structure of the lymphatic system
fluid that is circulated through the lymph vessels |
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lymph capillaries
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structures of the lymphatic system
microscopic vessels that draw lymph from tissue to the lymph vessels |
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lymph vessels
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structures of the lymphatic system
vessels that receive lymph from the lymph capillaries and circulate it to the lymph nodes |
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lacteals
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structures of the lymphatic system
specialized lymph vessels in the small intestine that absorb fat into the bloodstream (lacteus = milky) |
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chyle
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structures of the lymphatic system
white or pale yellow substance in lymph that contains fatty substances absorbed by the lacteals |
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lymph nodes
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structures of the lymphatic system
many small, oval structures that filter lymoh from the lymoh vessels; major locations included the cervical, axillary, and inguinal regions |
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lymph ducts
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structures of the lymphatic system
collecting channels that carry lymph from the lymph nodes to the veins |
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right lymphatic duct
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structures of the lymphatic system
receives lymph from the right upper part of the body |
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thoracic duct
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structures of the lymphatic system
receives lymph from the left side of the head, neck, chest, abdomen, left arm, and lower extremities |
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immunity
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immunity
process of disease protection induced by exposure to an antigen |
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antigen
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immunity
a substance that, when introduced into the body, causes the formation of antibodies against it |
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antibody
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immunity
a substance produced by the body that destroys or inactivates an antigen that has entered the body |
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active immunity
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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 |
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passive immunity
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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 |
