KINS 1223 Lecture Notes - Lecture 10: Endochondral Ossification, Intramembranous Ossification, Bone
26 Sep 2017
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Document Summary
The skeletal system: re study the bones (landmarks), but will not be identified. 206 bones in axial and appendicular skeleton. Of vital organs (brain, lungs, heart), floating ribs cover kidneys. Structure vs function, see how it is protecting organs. Muscles anchor to bone, giving pulley system. Once blasts are done building, they become osteocytes. Bones are made to bend, however are strong enough to withstand forces to a certain. Osteogenic cells in endosteum, periosteum, or central canals give rise to new extent osteoblasts. Multiply continuously, constant set of mitosis to make osteoblasts. When you get older, use it to get calcium. If you don"t eat enough of it, body will eat out of bone, causing brittle bones. Osteoclasts develop in bone marrow by fusion of 3-50 stem cells. Reside in pits that they ate into the bone. Bone does bend a little bit, but not as must as compression. Bone is best at resisting this kind of force!
