Blood & Blood Typing
Fact of the Day Horseshoe crabs, bleed blue. Certain leeches bleed green. And some species of marine worm bleed violet
What is in blood? Connective tissue Blood plasma (~55%) RBCs (erythrocytes), WBCs (leukocytes), & blood platelets (thrombocytes)
Hemoglobin Protein of mature RBCs Tetramer
Blood Type – ABO system Two antigens (A & B) A, B, AB, O
Agglutination
Rh System Group of 50 antigens D antigen = most common (positive & negative) Hemolytic disease of newborns (erythroblastosis fatalis)
CLS Research