Muscle contractions
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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| Isotonic | same tension or tone consists of concentric and eccentric contractions
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| concentric | muscle produces tension while shortening
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| eccentric | muscle produces tension while lengthening
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| Isometric | same length; muscle produces tension with out changing length
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| Isokenetic | muscle move through a range of motions at a constant angular speed. equipment needed. eg cybex machine
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| Prime movers | The predominate muscle used in a particular exercise
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| Agonist | All muscles responsible for a movement; prime movers, synergists
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| Antagonist | oppose the prime movers and therefor relax to allow contraction
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| Synergists | They assist the movement indirectly; stabilising joint etc
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| Skeletal muscle is made up of fibers called? | Myofibrils
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| Myofibrils consist of? | Thick myosin filaments and thin actin filaments
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| Myosin contains sites called? | Cross bridges
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