Organ in the body that is responsible for the creation of blood cells by the bone marrow cell 1. built. It is divided into three parts: red blood cells 2. 3. 4. leukocyte platelets, which are blood cells are immature cells from growing. Cells to mature And detached from the bone marrow into the blood
, so the blood by transfusion of blood from the body in moderation. It does not harm the body in any way. We can donate blood to meet the requirement. 5. donate every three months.
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