calcium phosphate
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Bone cells take calcium from the blood in order to keep bones hard and strong. Calcium is a key mineral necessary for bone formation and maintenance.
It contains calcium which is a substance that does not weight. Therefore it makes bones be strong and hard. If you took the calcium, the bones would be flexible and not hard at all.
A hard tissue injury is damage to bone tissue. A hard tissue injury is also called a "fracture" and is defined as a "loss of continuity in the substance of a bone"In other words, it's like when you break/fracture your leg/arm.
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.
Corsets were made of a hard rounded substance, like bone, and were used to slim a lady's middle.
To form into bone; to change from a soft animal substance into bone, as by the deposition of lime salts., Fig.: To harden; as, to ossify the heart., To become bone; to change from a soft tissue to a hard bony tissue.
A hard tissue injury is damage to bone tissue. A hard tissue injury is also called a "fracture" and is defined as a "loss of continuity in the substance of a bone"In other words, it's like when you break/fracture your leg/arm.
Bone is not a solid uniform material; it has spaces between the hard elements. The hard outer layer of the bone is made up of the compact cortical bone tissue that gives bone the hard, white, smooth solid appearance. This is often called 'dense' bone. The inside of the bone is filled with trabecular bone tissue (cancellous or spongy bone) which has a honeycombed appearance due to its open cell porous network made up of rod and plate elements that give the bone lightness and room for the blood vessels and bone marrow.
The bone is structured easilythey are hard and rough on the out sideThen they have a silky substance before the bone marrowThen in the middle there is the bone marrow a jelly like substance
The palatine bone is the posterior bone of the hard palate.