Kinesiology 2241A/B Lecture Notes - Lecture 2: Stainless Steel, Pisiform Bone, Pelvic Floor

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2241A/B
• Professor: Thomas Richard Jenkyn

Document Summary

Know what the bones do, shape, function, structure. Appendicular skeleton: upper extremities (arms, hands), lower extremities (legs, feet), pelvis. Can still live if arm is cut off etc. Has processes that the ribs attach to --> 12 thoracic = 12 ribs. If hurt takes a long time to heal. Spine needs to be protective and flexible to protect nerves. Slightly less vital organs - intestines, colon, liver. Lower thoracic - no ribs here, held together because of the pelvis. Bone laid down in areas of high stress, bone lost in areas of low stress (julius. Example: running makes your bones get stronger because of use. Runner vs power lifter will have different bone structures. Exercise is hugely beneficial to maintaining bone mass. Stress shielding: stiff metal implant off loads the surrounding bone so the bone resorbs. Originally made out of stainless steel - this is 10x stronger + stiffer than bone.