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Posts Tagged ‘primary bone’

Cancers that originate in the bone, called primary bone cancers, are very rare. They most often occur in children and adolescents. Cancerous tumors in the bone “eat” their way through surrounding structures and spread quickly around the body, so early diagnosis is essential. If detected early, surgery can be carried out to remove the tumor, and most patients have only a slight chance of the disease recurring within five years, and after that recurrence is not likely. However, most cases are not diagnosed early and the prognosis is not good.

The causes of primary bone cancer are not yet known, but there may be a genetic link because it often seems to run in families. This form of cancer most often occurs in the leg, with it painful swelling just above or below the knee. The pain may be worse while standing or while in bed at night. Read the rest of this entry »

The bones of the skeleton provide structural support for the body and work with the muscles to move it. Bones also have other functions:

• Some bones protect the vital organs. The skull acts as armor for the brain, and the pelvic hones keep abdominal organs from being damaged. The movement of the ribs aids the process of breathing and they also protect the organs of the chest, such as the heart and lungs.
• The bones of the ear help with hearing. They act as amplifiers when sound passes from the outside world through on its way to the brain.
• The bone marrow inside flat bone as the shoulder blades and breastbone a range of blood cells.

THE JOINTS

• A joint is the junction between two or more bones. Some joints are fixed, such as of the skull, while others, such cartilaginous joints between the vertebrae of the spine, have hardly any However, most joints in the both freely and are known as Synovial joints. The ends of the bones meeting at synovial joints are covered with a thin layer of cartilage to stop them grinding against each other. They are lubricated, to allow smooth by a thin layer of fluid called Synovial fluid. The ligaments are strong fibrous strips that hold bones together at the joint them from moving too far apart.