Kinesiology 2241A/B Lecture 2: Lecture 2 – The Skeleton

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

Document Summary

Forces change the shape of the bones. Can tell when a child has a started walking. Us if you have cerebral palsy will get surgery to fix bones. Marathoner vs weight lifter bones will have different shapes. Bones change depending on different sport or activities you are involved in. Appendicular skeleton: the rest, upper extremities (arms, hands, lower extremities (legs, feet, pelvis. Can survive without your appendicular skeleton enable you to interact with your evnironment. Axial skeleton has everything that keeps you alive. 33 vertebrae mystical number whe(cid:374) sa(cid:272)ru(cid:373) a(cid:374)d (cid:272)o(cid:272)(cid:272)(cid:455)(cid:454) are(cid:374)(cid:859)t fused. Osteoblasts lay down bone continuously: blasts building. Osteoclasts absorb bone continuously: clasts tearing things down keeping level activity keeps these 2 balanced less activity osteoclast take over. We still do(cid:374)(cid:859)t k(cid:374)ow how the (cid:271)od(cid:455) k(cid:374)ows how to (cid:271)ala(cid:374)(cid:272)e. Flat bones: provide protection to underlying organs, sheets of bones curved to shapes to protect the body, cranium of skull. Ileum of pelvis: protect organs of lower abdomen.