BIOL 212 Lecture Notes - Lecture 27: Immunodeficiency, Connective Tissue Disease, Megakaryocyte

• School: University of San Diego
• Department: Biology Courses
• Course: BIOL 212
• Professor: Stitt

Document Summary

Constitute approx 60 -70% of all wbcs. Do not absorb acid or base dye well. Increase in number in response to allergic reactions. Stain a red, rosy color with an acid dye. Constitute less than 1% of all wbcs. Stain a dark blue with a base dye. Play an important role in the immune process. Small, disc-shaped fragments of very large cells called megakaryocytes. Has both anti-a and anti-b antibodies present in plasma. No, a antigens or b antigens present on its rbcs. No anti-a or anti-b antigens present in its plasma. Rh antigen is present on the rbc. Rh antigen is not present on the rbc. Rh- blood being exposed to rh+ blood via transfusion. Rh- mother giving birth to rh+ baby and blood mixes during the birth process. Injury to blood vessel creates a roughened area in the vessel. Platelets come in contact with rough spot and disintegrate. In the presence of calcium ions and other clotting factors.