BIOL 1002 : BIOL 1002 Exam 4
Document Summary
It spontaneously contracts; also influenced by the nervous system (rate of contraction) and by hormones: usually not under voluntary control, although training allows limited regulation, smooth muscle. Is living tissue: bone is living tissue, bone remodeling allows skeletal repair and adaptation to stresses, each year 5%-10% of all bone in your body dissolves and is replaced, this process is called bone remodeling, 2 consequences: 1. Bones under great deal of stress will get thicker, 2. If replacement slows more bone dissolves than is replaced in extreme cases. Joints between bones are needed for: movement, weakest spot in skeleton, damage joints very easily, hip- ball and socket joint. 4: movement (strength and speed, the result of bones and muscles working together. Important because survival of offspring in changing environment and natural selection. Involves the fusion of genetic material from 2 different individuals: equal genetic contributions form both parents, cell division and number of chromosomes (ploidy)
