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| 91. | thrombocytes | platelets, one of the formed elements of blood that consists of cell fragments broken off from megakaryocytes |
| 92. | thrombocytopenia | condition in which there are too few platelets, resulting in abnormal bleeding (hemophilia) |
| 93. | thrombocytosis | condition in which there are too many platelets, resulting in abnormal clotting (thrombosis) |
| 94. | thrombopoietin | hormone secreted by the liver and kidneys that prompts the development of megakaryocytes into thrombocytes (platelets) |
| 95. | thrombosis | excessive clot formation |
| 96. | thrombus | aggregation of fibrin, platelets, and erythrocytes in an intact artery or vein |
| 97. | tissue factor | protein thromboplastin, which initiates the extrinsic pathway when released in response to tissue damage |
| 98. | totipotent stem cell | embryonic stem cell that is capable of differentiating into any and all cells of the body; enabling the full development of an organism |
| 99. | transferrin | plasma protein that binds reversibly to iron and distributes it throughout the body |
| 100. | universal donor | individual with type O- blood |
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