Body fluid

Hematocrit

Hematocrit

Hematopoiesis

Erythropoiesis

Hemoglobin

Life cycle of a RBC

Leukopoiesis

Thrombocytes - Platelets

Step 2: Platelet plug

Extrinsic and Intrinsic coagulation pathways

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Colorized SEM of Red Blood Cells (red), platelets (green) and White Blood Cells (purple)

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TEM of Red Blood Cells (in cross section)

Sickle Cell Anemia (arrow = sickle cell)

Colorized SEM of Sickle Cell RBCs (green)

Normal RBC Sickled RBC

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Platelet by TEM

Erythrocyte function

• Dedicated to carry respiratory gas