Contents
Definition of the bone marrow
Bone marrow is myeloid tissue, or soft jelly tissue in the body, which is the tissue that fills the bone cavities, and the color of the bone marrow is often yellow or red, depending on the components of the blood, Or the fatty tissue in it. [1]
Bone marrow color
- Red marrow: In the human body , red bone marrow makes up all blood cells, with the exception of lymphocytes, which reach maturity in the lymphatic organs, and it is worth noting that red marrow works with the liver and spleen to eliminate old red blood cells. [1]
- Yellow marrow: Yellow marrow acts as a store of fat, and it can also be converted into red marrow under certain conditions, such as: severe anemia or fever, and the entire human marrow is red from birth until the age of seven, and after this age, fat tissue replaces the red marrow, and this What was found in the vertebrae of the body, the hip area, the chest bones, the skull, the ribs, and at the ends of the long bones of the legs and arms of an adult, were all filled with yellow marrow. [1]
Bone marrow function
The task of the bone marrow is to generate red blood cells, and the bone marrow consists of two types of stem cells, namely, "hematopoietic stem cells" located specifically in the red marrow, which is responsible for the production of blood cells. "Mesenchymal stem cells" or "mesenchymal stem cells". [2] Every second, the bone marrow produces between 10 million and 15 million new red blood cells. [3]
Bone marrow stem cells
Red bone marrow contains hematopoietic stem cells, which produce two other types of stem cells, namely: [2]
- Lymphoid stem cells, and these cells develop into platelets, red blood cells, or white blood cells. [2] Lymphocytes contain cells that attack foreign bodies and are part of the immune system, and these include B lymphocytes and T lymphocytes . [2]
- Myeloid stem cells [2] which develop into red blood cells, platelets, mast cells, or myeloblast cells that develop into granulocytes. Granulocyte and mononucleosis. [2]
Bone marrow transplant
The cultivation method of marrow bone method of treating bone marrow for people who suffer from the occurrence of defects in Nkhaahm, and farming can be a process through patching, which is done by removing bone marrow from the patient 's body, and then be processed and re - cultivation, can also be obtained On healthy bone marrow by a donor body as a relative, bone marrow transplants are often performed for patients with leukemia, severe anemia, and immune system disorders. [3]
References
- ^ A b v The Editors Of Encyclopædia Britannica (11-7-2017), " of Bone Marrow" , Www.britannica.com , Retrieved 13-1-2018. Edited.
- ^ A b t w c h Regina is's Bailey (16-10-2017), " of Bone Marrow And Blood Cell Development" , Www.thoughtco.com , Retrieved 13-1-2018.
- ^ A b " of Bone Marrow" , Www.encyclopedia.com , Retrieved 13-1-2018.
