Bone marrow.
bone marrow
Minerals like calcium and phosphorus :)
The strength and rigidity of the bone is a result of the inorganic salts deposited in the matrix. Matrix is basically just large amount of non-cellular materials, which is what your bones are made of.
The substance that makes up the skeleton is called "calcium phosphate," which combines with other minerals and proteins to form bone tissue. Additionally, bone tissue is constantly being broken down and rebuilt in a process called remodeling.
calcium
Marrow. It makes blood cells.
bone marrow
The special material in bones that makes blood cells is called bone marrow. Bone marrow is a soft, spongy tissue found in the cavities of bones and is responsible for the production of different types of blood cells, including red blood cells, white blood cells, and platelets.
Bone marrow
MARROW, bone marrow makes blood cells.
Compact Bone, makes up the dense material in a long section of a bone. Cancellous bone, is found in the end regions of long bones and hs plates of bone interspersed with bone marrow.