MOVESCI 110 Lecture Notes - Lecture 1: Appendicular Skeleton, Axial Skeleton, Weight-Bearing

• School: U of M
• Department: Movement Science
• Course: MOVESCI 110
• Professor: Kara Palmer

Document Summary

Carpal of the wrist and tarsals of the ankles. Provide strength, not mobility thin, flattened, usually curves. Dense, solid outer layer of compact bone and an inner layer of spongy bone. Bone tissue consist of cells plus a significant amount of extracellular matrix. Osteoblast vs osteoclast; osteoblast activity > osteoclast activity. Plates ossify around age 18-25 and longitudinal growth stops. More active you are, the thicker the bones. Shear- break in the middle (happens in contact sports) Bones typically are loaded in more than one way. Wrestlers have some of the densest bones, swimmers have the weaker bones in comparison. Wolff s law- bones grow to resist loads placed on it because it is adaptive and building in the direction of the functional forces. Osteoporosis- bones w/ large holes; increased bone fragility and risk of fracture, trabeculae grow larger and bone walls get thinner stimulates osteoblast and inhibits osteoclast activity. Postmenopausal women experience a rapid decline in estrogen secretion; estrogen.