HSS 2342 Lecture Notes - Lecture 14: Fluoride, Mouthwash, Osteocalcin
28 Mar 2017
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Document Summary
Bones are composed of 65% mineral crystals for strength and structural support. These minerals are deposited onto a collagen matrix (35%) which results in exibility. Bone mineral density is proportional to bone strength. There are two types of bone tissues: cortical bone: very dense, part of outer walls of larger bones/main tissue of small bones. Cortical bone composes the shafts of long bones and a thin cortical shell cap on the end of bones. Cortical bone provides strength to the outer wall of the bone: trabecular bone: lacy architecture, responds readily to hormones. Trabecular bone acts like scaffolding supporting the lines of stress. Bones have two compartments: the outer, hard shell of the cortical bone, and the inner, lacy metric of the trabecular bone. Both bones lose minerals, but they do so differently: bone growth. Bones are genetically programmed to grow in length from conception all the way to teen years.
