(Jrt)
Bone marrow
The bone marrow is a tissue located at the centre of bones. It is the tissue that produces different types of blood cells: white blood cells (WBC), red blood cells (erythrocytes, or red blood cells) and platelets. Bone marrow contains two types of specific cells: hematopoietic stem cells (HSC) and bone marrow stromal cells which are the hematopoietic cells.
The CSH are called multipotent: they are able to differentiate into all types of blood cells; whenever a CSH is divided into 2 cells, a cell will allow the maintenance of the stock of CSH and the other will differentiate themselves in one of three types of blood cell: leucocyte, red blood cell or pad. The stromal cells are a fabric of support that allows the multiplication of CSH and their differentiation. They are also able to differentiate into many cell types.
The long bones had a structure shaped tube, and their central hole is filled with yellow marrow. While most of the long bone (diaphyse) is made of matter compact, its ends are the epiphyses, which are generally made up of spongy material and spinal red. The bone is tranversé through arteries and veins, which allows him to be fed and what it can get cells from the marrow of hematopoiesis in the blood.
Bone marrow and food
The bone marrow is more widely used in cooking, except to flavour soups, broths. But it is a source of protein, and significantly, fatty acid mono-unsaturated. As they are lower cholesterol, lack of heart problems and obesity among our hominid ancestors was justified by some on their regular consumption of bone marrow. [Ref. necessary] But it should also be noted that they lived less old and they were more physically active than modern man. The actual effects of regular consumption of bone marrow on health are unknown.
Read also Leukemia
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