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1. Shape: Tiny cell fragments
2. Shape: Variable, amoeboid
3. Origin: Megakaryocytes in red bone marow
4. Origin: Bone marrow and lymphoid tissue
5. Primary function: Combat infection
6. Secondary name: Leukocytes
7. Shape: Bi-concave disc
8. Origin: Proerythroblasts in red bone marrow
9. Secondary name: Thrombocytes
10. Primary function: Blood clotting
11. Primary function: Transport Oxygen and Carbon Dioxide
12. Secondary name: Erythrocytes