01:146:356 Chapter Notes - Chapter 16: Thrombus, Valine, Thromboxane A2
23 Mar 2016
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Chapter 16: blood: plasma and the cellular elements of blood. 5 l of blood in body, with 3l being plasma and 2 l being blood cells. Cellular elements include rbcs or erythrocytes, wbcs or leukocytes, and platelets or thrombocytes . Rbc lose their nucleus by the time they are in blood stream, platelets are just cell fragments of megakaryotes, and wbc are the only fully functional ones whose work is usually done at tissues not blood. Pluripotent hematopoietic stem cell uncommitted stem cells progenitor cells (narrow to 2 types) Inactive marrow is yellow due to adipose fat tissue content. 25% are rbc and 75% are wbc wbc have shorter life span than rbc. Wbc production may even depend on existing wbc count. Differential white cell count to see the percentage of leukocytes in total wbc count. Viral infections cause low, normal, or high wbc counts but definite high leukocyte counts. Leukemia is caused by abnormal growth and development of wbc.
