Red Bone Marrow 

The Red bone marrow is found in mostly to skeletal and near the point of attachment of long bones of the arms and legs .

Red bone marrow is not only produce blood cells but it also have to remove old cells from circulation. 

Other organs such as spleen and liver also filter damage blood cells from the cells. 

Red bone marrow contains haemotopoeisis stem cell that produces to other types of stem cells that is myloid and lymphoid stem Cells. These cells develop into RBCs , WBCs and platelets. 

Yellow Bone Marrow

Yellow bone marrow consists of primary of fat Cells. 

It has poor vascular supply. 

It help provide support and maintain the correct environment for the bone to functions. When blood supply is extremely low , yellow bone marrow can be converted to Red bone marrow in order to produce more blood cells. 

Yellow bone marrow is found in the Central cavities of long bone.