Question

Write the composition of matrix in bones and cartilage.

Answer 1

Answer:

Extracellular matrix, which is made up of an organic matrix (30%) containing proteoglycans (but less than cartilage), glycosaminoglycans, glycoproteins, osteonectin (anchors bone mineral to collagen) and osteocalcin (calcium binding protein). There are collagen fibres (mostly type I (90%), with some type V).

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Answer 2

Answer:

A Bone Structure and Composition

Bone matrix (also known as osteoid) consists of about 33% organic matter (mostly Type I collagen) and 67% inorganic matter (calcium phosphate, mostly hydroxyapatite crystals).

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