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| bone marrow or spinal cord |
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| liquid portion of the blood and lymph; contains water, proteins, and cellular components (leukocytes, erythrocytes, and platelets) |
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| liquid portion of the blood that remains after clotting |
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| red blood cell; transports oxygen and carbon dioxide |
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| the protein-iron compound in erythrocytes that transports oxygen and carbon dioxide |
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| white blood cell; protects the body from harmful invading substances |
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| a group of leukocytes containing granules in their cytoplasm |
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| a granular leukocyte, named for the neutral stain of its granules that fights infection by swallowing bacteria |
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polymorphonuclear leukocyte
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| another term for neutrophil, referring to the many segments in its nucleus (poly=many; morpho = form; nucleus = kernel) |
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| a granular leukocyte, named for the rose-colored stain in its granules, that increases in allergic and some infectious reactions |
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| a granular leukocyte, named for the dark stain of its granules that brings anticoagulant substances to inflamed tissues |
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| a group of leukocytes without granules in their nuclei |
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| an agranulocytic leukocyte that is active in the process of immunity; the three categories of lymphocytes are T cells, B cells (bone marrow derived), and NK (natural killer) cells |
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| an agranulocytic leukocyte that performs phagocytosis to fight infection |
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| thrombocytes; cell fragments in the blood tat are essential to blood clotting (coagulation) |
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| 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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| organ between the stomach and the diaphragm that filters out aging blood cells, removes cellular debris by performing phagocytosis, and provides an environment for lymphocytes to initiate immune responses |
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| fluid that is circulated through the lymph vessels |
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| microscopic vessels that draw lymph from tissues to the lymph vessels |
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| vessels that receive lymph from the lymph capillaries and circulate it to the lymph nodes |
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| specialized lymph vessels in the small intestine that absorbs fat into the bloodstream (lacteus = milky) |
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| white or pale yellow substance in lymph that contains fatty substances absorbed by the lacteals |
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| many small, oval structures that filter lymph from the lymph vessels; major locations include the cervical, axillary, and inguinal regions |
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| collecting channels that carry lymph from the lymph nodes to the veins |
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| receives lymph from the upper right part of the body |
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| receives lymph from the left side of the head, neck, chest, abdomen, left arm, and lower extremities |
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| process of disease protection induced by exposure to an antigen |
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| a substance that, when introduced into the body, causes the formation of antibodies against it |
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| a substance produced by the body that destroys or inactivates an antigen that has entered the body |
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| 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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| 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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