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chapter 8
blood and lymphatic system
| Term | Definition |
|---|---|
| chrom/o chromat/o | color |
| chyl/o | juice |
| hem/o hemat/o | blood |
| myel/o | bone marrow or spinal cord |
| circulating tissue of the body consisting of fluid with formed elements (red blood cells, white blood cells, and platelets) suspended in the fluid | blood |
| liquid portion of the blood and lymph; contains water, proteins, and cellular components (i.e., white blood cells, red blood cells, and platelets) | plasma |
| liquid portion of the blood that remains after clotting | serum |
| a granular leukocyte, named for the neutral stain of its granules that fights infection by swallowing bacteria (phagocytosis) (neutr= neither) (phil=attraction for); Normal Range (in stained blood smear): 54-75% | neutrophil |
| a group of leukocytes without granules in their nuclei | agranulocytes |
| cell fragments in the blood that are essential for blood clotting (coagulation); also called thrombocytes | platelets |
| primary gland of the lymphatic system, located within the mediastinum, that helps to maintain the body's immune response by producing T lymphocytes | thymus |
| organ between the stomach and the diaphragm that filters out aging blood cells, removes cellular debris by phagocytosis, and provides an environment for lymphocytes to initiate immune responses | spleen |
| vessels that receive lymph from the lymph capillaries and circulate it to the lymph nodes; also called lymphatic vessels | lymph capillaries |
| microscopic vessels that draw lymph from tissues to the lymph vessels | lymph vessels |
| right lymphatic duct | receives lymph from the upper part of the body |
| thoracic duct | receives lymph from the left side of the head, neck, chest, abdomen, left arm, and lower extremities |
| a substance produced by the body that destroys or inactivates an antigen that has entered the body | antibody |
| 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 | active 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 | passive immunity |
| microcytosis | presence of small red blood cells |
| macrocytosis | presence of large red blood cells |
| poikilocytosis | presence of large, irregularly shaped red blood cells (poikilo= irregular) |
| anisocytosis | presence of red blood cells of unequal size (an = not, without; iso = equal) |
| lymphocytopenia | an abnormally reduced number of lymphocytes |
| pancytopenia | an abnormally reduced number of all cellular components in the blood |
| thrombocytopenia | an abnormally decreased number of platelets in the blood, impairing the clotting process |
| hemolysis | breakdown of the red blood cell membrane |
| reticulocytosis | an increased number of immature erythrocytes in the blood |
| immunosuppression | impaired ability to provide an immune response |
| lymphadenopathy | enlarged (diseased) lymph nodes |
Created by:
marlenim
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