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Leukocytes(WBC)
MTSU Stegall-Faulk Anatomy 2
| Term | Definition |
|---|---|
| WBC function | wanders through tissues eating debris |
| chemotaxis | cells attracted by a chemical |
| Granulocytes | Granules stain. neutrophil, eosinophil, and basophil |
| agranulocytes | granules do not stain. Lymphocytes and monocytes. |
| Lymphocytes | 20-30% of WBC. t-cells, b-cells, NK cells. |
| monocytes | 2x the size of RBC. 2-8% of WBC. |
| T-cells | lymphoid stem cells migrate through the thymus and differentiate into mature t-lymphocytes. |
| B-cells | humeral dependent, form antibodies left in the plasma, and discriminatory. |
| leukemia | total WBC count greater than 100,000- low tolerance. |
| neutrophils | most abundant, actively phagocytic, 1st to injury cite. |
| diapedesis | the way neutrophils leave the blood stream. they mirage between cells. |
| eosinophils | 2-4% of WBC. bi-lobed. allergic reaction or parasitic infections. |
| basophils | >1% of WBC. release heprin and histimine. not phagocytic. accumulate damaged tissues at injury sites. |