Bone, one of the heavier organs in the body, is formed essentially two-pronged: one composed of cells, vessels and nerves, organic and other mineralized matrix composed mainly of a water solution of protein (collagen) which became highly integrated with calcium crystalscalled hydroxyapatite crystals. The three main types of cells in the bones are osteoblasts, osteoclasts and osteocytes.
Osteoblasts produce collagen and generate the matrix, which is then filled with hydroxyapatite - or calcium crystals. Calcium is deposited in layers called laminae, and they are traversed by minute channels called canals of Havers or osteons. Their dense arrangement gives compact bone is its great strength. In our life, our os is also resorbed or digested by osteoclasts, which break down bone, digest the matrix.
Units special multicellular os, that act as patrols and travel through the surfaces of our bones with osteoclasts digesting small amounts of the matrix. These are then replaced by the newly formed bone of osteoblasts, which in turn become trapped as osteocytes for a number of years. In this way, our complete skeleton is renewed every 7 to 10 years.
These units of repair cracks and defects that can appear in bone, and they are responsible for remodeling after fracture of the bone.
Bones and joints for life
In our first years, the filing of the os far exceeds its resorbtion, resulting in growth and mineralization of the existing os. In the adult-hood, most people will achieve a stable balance, with the net amount of bone remains constant. As we age, however, the balance towards resorbtion shirts, leading to a reduction of bone and a loss of mineralization of the existing stocks. The extremes of this process are respectively called osteoporosis and osteomalacia.
The reason that this process is particularly important for women with menopause, sharp reduction in estrogen levels results in a resorption of the bone, which prevails over the formation of a new os quickly and which can lead to osteoporosis.
An asymptomatic condition, Osteoporosis causes no pain or other symptoms known until a fracture ensued. These fractures can cause a significant loss of function in the wrist, severe chronic low back pain and disability or great difficulty walking and mobility causing death life in many cases.
In fact, the number of deaths attributed to fractures of the hip in the elderly is very similar to that heart attacks and cancer, with women being affected approximately 10 times more often than men.
Bone is made of living tissue that renews itself continuously throughout life. But quarantine from this process slows and the skeleton loses mineral bone. Early menopause the decrease in the production of estrogen can have a different effect on bone health, often leading to osteopenia and osteoporosis. Wendy examines ways to assess bone mineral density and the means to compensate for bone loss, including natural progesterone cream. Also, it examines the changes that we could live in our joints and gives positive strategies to overcome them.
How to Grow Tall Taller http://your-health-guru.blogspot.com
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