1. BLOOD
Biology lab
03 كانون الثاني، 19
Farah. E. Ismaeel

2. BLOOD Blood is a unique form of connective tissue.
consists of three major cell types:
erythrocytes(red blood cells)
leukocytes (white blood cells)
platelets (thrombocytes).
These cells are suspended in a liquid medium called plasma
03 كانون الثاني، 19
Farah. E. Ismaeel

3. Blood cells transport gases, nutrients, waste products, hormones, antibodies, various chemicals, ions, and other substances in the plasma to and from different cells in the body.
03 كانون الثاني، 19
Farah. E. Ismaeel

4. Hemopoiesis
• Blood cells constantly replaced in red marrow because of limited life span • Common pluripotential stem cell forms pluripotential myeloid and lymphoid stem cells
03 كانون الثاني، 19
Farah. E. Ismaeel

6. Pluripotent stem cell Lymphoid stem cell
Myeloid stem cell
Thrombocytopoesis
Platelets
Erythropoiesis
RBC
Granulopoeisis
Granulocytes
Lymphoid stem cell
Lymphopoiesis
Lymphocytes

7. Erythropoiesis (red blood cell formation)
03 كانون الثاني، 19
Farah. E. Ismaeel

8. 03 كانون الثاني، 19
Farah. E. Ismaeel

9. Granulopoiesis
Basophilic
metamyelocyte

10. 03 كانون الثاني، 19
Farah. E. Ismaeel

11. Cell fragments (platelets)
Blood
Plasma
Cells
Leukocytes
Granulocytes
Neutrophils 60-70%
Eosinophils 2-4%
Basophils %
Agranulocytes
Monocytes 3-8%
Lymphocytes 20-25%
Erythrocytes
Cell fragments (platelets)

12. Erythrocytes (Red blood cells)

13. Leukocytes

14. THANK YOU
03 كانون الثاني، 19
Farah. E. Ismaeel