Hematopoietic activity

[Keroro]

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A bio question :


What is a major center for the Hematopoietic activity ??



answer was a bone




Hematopoietic activity = activity involoved in blood formation ??



i didn't get it..

 

[dat_student]

A bio question :


What is a major center for the Hematopoietic activity ??



answer was a bone




Hematopoietic activity = activity involoved in blood formation ??



i didn't get it..

Hematopoiesis is the formation of blood cellular components. This process occurs in myeloid tissue, which is found in the bone marrow and lymphatic tissue, such as lymph nodes or the spleen. All of the cellular components of the blood are derived from hematopoietic stem cells.

In developing embryos, blood formation occurs in aggregates of blood cells, called blood islands. As development progresses, blood formation occurs in the spleen, liver and lymph nodes. When bone marrow develops, it assumes the task of forming most of the erythrocytes and granulocytes. Lymphoid organs continue to produce most of the mature lymphocytes and monocytes, though lymphoid progenitor cells originate in the bone marrow. While most hematopoiesis in adults occurs in the bone marrow of the femurs (also the ribs and sternum), the liver, thymus, and spleen may resume their hematopoietic function if necessary (called extramedullary haematopoiesis).

In some vertebrates, hematopoiesis can occur wherever there is a loose stroma of connective tissue and slow blood supply, such as the gut, spleen, kidney or ovaries.

 

[Keroro]

it was very helpful!