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

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Presentation transcript:

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

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

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

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

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

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

03 كانون الثاني، 19 Farah. E. Ismaeel

Granulopoiesis Basophilic metamyelocyte

03 كانون الثاني، 19 Farah. E. Ismaeel

Cell fragments (platelets) Blood Plasma Cells Leukocytes Granulocytes Neutrophils 60-70% Eosinophils 2-4% Basophils 0.5-1% Agranulocytes Monocytes 3-8% Lymphocytes 20-25% Erythrocytes Cell fragments (platelets)

Erythrocytes (Red blood cells)

Leukocytes

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