Wednesday, November 26, 2008
Blog 7 Bone Health
Bone health is dictated by numerous factors, including calcium levels and hormone levels. We consume milk because it provides a good source of calcium. Calcium is absorbed by the bone and makes the bone harder. This usually prevents them from breaking too easily. But as aging progresses calcium is either in short supply or not absorbed as readily. This leads to bone diseases like osteoporosis. If the cartilage at the ends of the bones are not continouosly regenerated, arthritis can result. Hormone levels dictate the growth and destruction of bones because of the calcium levels. Exercising puts stress on the muscles on the bone, which let's them adapt and grow even better. If a person neglects exercise, it is much easier for the bones to break or the muscles attached to them to tear. Eating the right foods will give the body the needed nutrients to build and maintain strong bones.
Monday, November 17, 2008
Blog 6 Structure and Function of Bones
Bones are the framework of our body. Without them, we would be but gelatinous globs of muscle and skin. Bones are characterized by their shapes and functions, so it is fitting that they are placed into 4 categories: long, short, flat, and irregular. The muscles that allow us movement are attached to our bones. Bones are also protective units for our body's soft insides, such as the organs and the brain. When the bone is fractured, it can heal itself through a reconstruction process. All in all, the bones of our body shape the way the body looks, and how it performs day to day duties.
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