Biology- Bones and Muscles Chapter 7 Section 7 -Finished
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| hypertrophy | muscles which are enlarged through excercise
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| atrophy | muscles which shrink through lack of use
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| what will happen if skeletal muscles are not used | they will get atrophy
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| red fibers | muscle fibers that contain many mitochondria and large amounts of myoglobin
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| white fibers | muscle fibers containing fewer mitochondria and less myoglobin
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| the muscular and skeletal systems cannot function together without this system | nervous system
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| muscle sense | the total awareness of body movements
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| the greatest cause of muscle atrophy | it's mostly caused by inactivity
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| why is proper exercise essential to the health of muscles | so that they don't get atrophy
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| Why do your legs tire quickly when sprinting or climbing stairs, but tire very slowly or not at all when walking at a normal pace | because you use white fibers when running and they have less energy than red muscle fibers
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| how does physical exercise affect muscles | they will shrink if not exercised, and enlarge if exercise
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