1. Blood & Blood Typing

2. Fact of the Day Horseshoe crabs, bleed blue.
Certain leeches bleed green.
And some species of marine worm  bleed violet

3. What is in blood? Connective tissue Blood plasma (~55%)
RBCs (erythrocytes), WBCs (leukocytes), & blood platelets (thrombocytes)

4. Hemoglobin
Protein of mature RBCs
Tetramer

5. Blood Type – ABO system
Two antigens (A & B)
A, B, AB, O

6. Agglutination

7. Rh System Group of 50 antigens
D antigen = most common (positive & negative)
Hemolytic disease of newborns (erythroblastosis fatalis)

8. CLS Research