Bone marrow. Definition

Medical Definition: Bone marrow

Kind of soft, spongy tissue found inside the large bones, especially the central body, such as skull, vertebrae, ribs, sternum, shoulder girdle and pelvis. Can be of two types: red bone marrow, the spongy tissue that occupies the flat bones, such as the sternum, vertebrae, pelvis and ribs, is having hematopoietic function, the yellow bone marrow, which is woven fat, and is located in the medullary canals of long bones. The bone marrow is where blood is made (hematopoiesis, white blood cells, red blood cells and platelets), because it contains stem cells that give rise to three types of blood cells are white blood cells, red blood cells and platelets. Leukemias originate in the bone marrow whereas lymphomas tend to invade in the course of its progression.

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