KIN 4512 Chapter : Chapter 5 Outline
15 Mar 2019
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Chapter 5 development and aging of body systems: body systems - general, body systems are influenced by extrinsic factors. What cells are responsible for this: osteoclasts: absorbs bones, osteoblasts: creates bone, in adulthood, bone growth slows, fails to keep pace with reabsorption, bone becomes more brittle. Loss occurs in number and size of muscle fibers (the latter usually after age 70): whether type ii fibers undergo greater loss is unclear. Is there anything that can be done to prevent/reduce these declines: stay physically active; if you don"t use it you loose it; How are skeletal development and muscle development related to one another? (think development); Skeletal system grows, muscles must grow with them. As weight of bone changes, muscle does as well; maybe takes more contracile force to move heavier bones. Does a fat baby mean the child will be fat? no. Fat baby does not equal fat child individual variability is great.
