The key part is that there is a lining of cells that secrete the fluid. It would be prudent to review some anatomy and growth specifics regarding bone in an effort to better understand the development of these cyst lesions. Bone is considered to be a special form of connective tissue and is made up of microscopic crystals of calcium and phosphate within a matrix of collagen. Remember, collagen is a protein structure that is also a major structural substance of skin and tendons. 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.