DEVELOPMENTAL PSYCHOLOGY
NEWBORN DEVELOPMENT
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ossification
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voluntary
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Either A or B
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None of the above
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Detailed explanation-1: -Calcification is the process of deposition of mineral salts on the collagen fiber matrix that crystallizes and hardens the tissue.
Detailed explanation-2: -Overview of Osteopetrosis Osteopetrosis is a rare disorder that causes bones to grow abnormally and become overly dense. When bones become overly dense, they are brittle and can fracture (break) easily. In addition, bones may be misshapen and large, causing other problems in the body.
Detailed explanation-3: -The hardness and rigidity of bone is due to the presence of mineral salt in the osteoid matrix, which is a crystalline complex of calcium and phosphate (hydroxyapatite).
Detailed explanation-4: -Bone composition and structure The major minerals found in bone are calcium and phosphorus in the form of an insoluble salt called hydroxyapatite [chemical formula: (Ca)10(PO4)6(OH)2]. Hydroxyapatite crystals lie adjacent and bound to the organic protein matrix.