Bone - Calcium, Phosphate, Hardness | Britannica
2024年10月29日 · Bone - Calcium, Phosphate, Hardness: Depending upon species, age, and type of bone, bone cells represent up to 15 percent of the volume of bone; in mature bone in …
Calcium | Definition, Properties, & Compounds | Britannica
2024年11月12日 · As calcium hydroxyl phosphate, it is the principal inorganic constituent of teeth and bones and occurs as the mineral apatite. As calcium fluoride, it occurs as fluorite, or …
Dietary Reference Intakes for Calcium and Vitamin D.
Calcium as a nutrient is most commonly associated with the formation and metabolism of bone. Over 99 percent of total body calcium is found as calcium hydroxyapatite (Ca10[PO4]6[OH]2) …
Calcium - Wikipedia
As calcium is required for bone development, many bone diseases can be traced to the organic matrix or the hydroxyapatite in molecular structure or organization of bone. Osteoporosis is a …
Bone mineral: new insights into its chemical composition
2019年6月11日 · Bone is a natural composite material whose main components are mineral and organic matrices 1, 2. The mature mineral matrix is in the form of nanosized, elongated …
Bone mineral: update on chemical composition and structure
The structure of the Ca–P solid phase in bone was first identified by deJong in 1926 as a crystalline calcium phosphate similar to geological apatite by chemical analyses and, most …
Bone matrix: Components and histology - Kenhub
2023年10月30日 · Bone is a specialized connective tissue composed of three main components: Calcified extracellular substance Bone matrix; Bone cells (osteocytes, osteoblasts and …
Basic Biology of Bone
Bone is a composite tissue consisting of mineral, matrix (collagen and non-collagenous proteins), cells, and water. The mineral is hydroxyapatite, which is an analog of the naturally occurring …
Calcium - StatPearls - NCBI Bookshelf - National Center for ...
2024年1月8日 · Bone tissue stores calcium as hydroxyapatite, deposited when serum calcium levels are elevated and released when levels are low. This process is linked with the …
38.2: Bone - Biology LibreTexts
Bone, or osseous tissue, is a connective tissue that constitutes the endoskeleton. It contains specialized cells and a matrix of mineral salts and collagen fibers. The mineral salts primarily …