Lecture 1 Blood Physical Characteristics and Components of Blood Origin and Development of Blood Cells.pptx

Blood cells and their physical characteristics.

1. Lecture 1 Blood Physical Characteristics and Components of Blood Origin and Development of Blood Cells By; Dr. Waheed Ali

2. Blood Blood is a special type of fluid connective tissue derived from mesoderm . That delivers nutrients and oxygen to the cells and transports metabolic waste product The study of blood, blood-forming tissues, and the disorders associated with them is called haematology .

3. Physical Characteristics of Blood

4. Components / C omposition of Blood 5x10 6 /mL 99% 7x10 3 /mL 3x10 5 /mL <1%

5. Components / C omposition of Blood

6. Blood Plasma Straw colored clear liquid

7. Formed Elements of Blood Red blood cells (R.B.C.) White blood cells (W.B.C.) Granular leukocytes Neutrophils Eosinophils Basophils Agranular leukocytes Lymphocytes - T cells, B cells, natural killer cells (N.K.C) Monocytes Platelets (special cell fragments)

8. Formation of Blood- Hematopoiesis Hematopoiesis Formation and development of blood cells In adults the cellular elements are produced in the bone marrow. Some WBCs are produced in the lymphatic tissue and bone marrow. Blood cells need nutrients such as: Iron Folic acid Vitamin B12 All blood cells formed come from a hematopoietic stem cell. These cells can become any blood cell.

9. Origin and Development of Blood Cells