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Functions of Bones
Whenever the bones meet in the human body there is a joint formed which performs a special function in our body. Some big joints such as hip and shoulder joint perform many functions at the same time. Their power and capacity to move has to be experienced to be believed. Some other joints, such as those in the skull, are totally immovable.
Movable joints are supported by ligaments. Muscles also move and support the joints to some extent.
Without bones, the human body would not have the shape which is seen by others. It would have no power to sit, stand or move. Essential minerals such as calcium and phosphorus are stored and distributed by them. Blood cells are produced by the red marrow which is contained in the spongy centers of bones.
The bones in males are larger and heavier than the bones in the female. The female pelvic cavity is wider than the male pelvic cavity. If it were not so it would be difficult for a woman to give birth to a baby in the normal manner.
The human legs carry a lot of weight for a lifetime. The fingers of the hand can catch hold of an object and manipulate it in a delicate fashion, and with these artists create immortal paintings and sculptures. The rib cage is a protective cushion for the heart, the lungs and major blood vessels of the body. The pelvic girdle protects and supports the internal organs of the lower abdomen. The spinal cord or the backbone is protected by the surrounding vertebral column.
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Some tips to keep bones healthy
Regular exercise is necessary to keep fit and to tone up the working of the bones efficiently. Exercise makes the muscles supple, strengthens and gives power to the arms, the trunk and the legs and keeps quite a few problems of the bones away.
However, all exercise has to be programmed according to the needs and capabilities of the particular individual. It is good to obtain guidance in this regard from persons trained to do so or from a number of excellent books which are available for this purpose. But, whichever way one may like to proceed there is no underestimating the value of regular exercise in keeping the muscles and the bones in the human body fit, supple and strong.
Proper weight keeps the locomotor system functioning efficiently. Hence obesity should be avoided through diet control as well as through regular exercise.
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References and Further Information
- Applegate, Edith J. The Anatomy and Physiology Learning System: Textbook. W.B. Saunders Company. Philadelphia. 1995.
- Van De Graaff, Kent M. Human Anatomy 5th Edition. WEB McGraw-Hill. Boston, MA. 1998.