In addition, sodium, magnesium, and carbonate also are present in bone. Bone is actually an extremely active tissue. Having never seen a tub full of frogs, I only had my imagination to visualize this phenomenon, but the message was clear. There are many chemicals that affect the metabolism of bone within the body. Bone, in fact, acts as the body's store for blood calcium.
Nutrition also can play a vital role in bone development and maintenance.
A dietary deficiency of calcium can cause a weakening of bone, a disease called rickets. These are just a few of the factors that affect the growth, development, metabolism, and remodeling of bone throughout life. The modern horse's ulna also has largely regressed, with the upper portion remaining fused to the radius and making the point of the elbow. The cartilage serves to provide a smooth gliding surface for the bones to move over as the joint is flexed or extended. It is difficult to discuss subchondral cysts without bringing up the subject of osteochondrosis, as this is thought to cause the majority of bone cysts.