KINESIOL 3K03 Lecture Notes - Lecture 6: Bone, Clavicle, Periosteum
12 Apr 2016
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Fracture: outer bone: hard, corical bone, inner: spongy, cancellous bone, more porous, allows some capacity to deform without breaking. Periosteum: membrane that wraps around the bone (shat/length), source of bleeding and pain, can keep blood siing in one spot (bone bruise) and bone is sill in tact, blends into tendons and ligaments. Aricular carilage: covers the ends of the bones. Failure at the site of impact or at the weakest point in the bone: weakest: changing direcion or changing shape, smallest csa (ie. clavicle) Acute vs. stress: acute: fell of bike, broke clavicle, stress/chronic: foot pain for awhile, more subtle, hard to pick up. Compound and simple: simple: what you want, everything breaks how expected, compound: broken through surface of skin, more challenging. Patern: relects mechanism: comminute: broke into many small pieces (compressive, spiral: twising mechanism, see the patern, horizontal: bend, direct trauma, avulsion: ligament pulls of bone because its stronger (younger kids)
