Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Define and describe the function of hydroxyapatite.
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Step 1 Introduction:
Hydroxyapatite is a calcium phosphate mineral with the formula Ca5(PO4)3(OH) and is the hydroxyl endmember of the complex apatite group. The OH– ion can be replaced by fluoride, chloride, or carbonate, producing fluorapatite or chlorapatite. It crystallizes in the hexagonal crystal system. Pure hydroxyapatite powder is white. Naturally occurring apatites can, however, also have brown, yellow, or green colorations, and this sometimes depends on the presence of transition metal ions.
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