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Glossary: platelet, Masonic Cancer Center, University of Minnesota

platelet

(PLAYT-let)

A tiny piece of a cell found in the blood that breaks off from a large cell found in the bone marrow. Platelets help wounds heal and prevent bleeding by forming blood clots. Also called thrombocyte.

Blood cells; drawing shows six types of white blood cells (monocytes, lymphocytes, neutrophils, eosinophils, basophils, and macrophages), a red blood cell (erythrocyte), and platelets.

Blood cells. Blood contains many types of cells: white blood cells (monocytes, lymphocytes, neutrophils, eosinophils, basophils, and macrophages), red blood cells (erythrocytes), and platelets. Blood circulates through the body in the arteries and veins.

2009-02-05