HAEMOPOIESIS

What is Haemopoiesis? well, it is the formation of blood cells.We should note that about 100 billion cells are formed each day.And it's occurs at the bone marrow,all the cells are arises from the mother cell or some books call it the stem cell and some time it is called pluripotent hematopoietic stem cell.These cells are divided into three categories:-

• Erythropoiesis((Red Blood Cells)) • Leukopoiesis ((White Blood cells)) • Thrombopoiesis ((Platelets))

and every one of them play a big role in the human body and all of them will become specific and has its own function.

We all know red blood cells and how important they are.They help in the transportation of the nutrition and oxygen because they have in their structure the hemoglobin which facilitate the carrying of oxygen in the blood circulation.But also they will circulate in the blood for 120 days.