Bone density
Bone Density
Bone density or bone mineral density (BMD) is the amount of bone mineral in bone tissue. The concept is of mass of mineral per volume of bone (relating to density in the physical sense), although clinically it is measured by proxy according to optical density per square centimeter of bone surface upon imaging.
Pronunciation
Bone Density: /boʊn ˈdɛnsɪti/
Etymology
The term "Bone Density" is derived from the Latin words 'os' meaning bone and 'densitas' meaning density.
Definition
Bone density is a measurement of the amount of minerals (mostly calcium and phosphorous) contained in a certain volume of bone. Bone density measurements are used in the diagnosis of osteoporosis.
Related Terms
- Osteoporosis: A condition characterized by a decrease in the density of bone, decreasing its strength and resulting in fragile bones.
- Bone Mass: The total amount of bone tissue in the body.
- Densitometry: The measurement of bone density.
- Dual-energy X-ray absorptiometry (DXA): A means of measuring bone mineral density (BMD).
- Calcium: A mineral found in many foods. The body needs calcium to maintain strong bones and to carry out many important functions.
- Phosphorous: A mineral that makes up 1% of a person's total body weight. It is the second most abundant mineral in the body. It is present in every cell of the body. Most of the phosphorus in the body is found in the bones and teeth.
See Also
External links
- Medical encyclopedia article on Bone density
- Wikipedia's article - Bone density
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