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Sliding filament mechanism
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Earn +20 ptsQ: Principle by which muscle fibers contract?
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What is the function of the muscle fibers?
muscle fibers contract the muscles when stimulated.
What is muscle protein?
it is tiny muscle fibers that contract and expand the muscle
Which cells have long fibers that can contract and relax?
Muscle cells can contract and relax and lave fibers as long as 1.5 feet.
Do all types of muscle fibers produce movement?
No, intrafusal fibers don't contract.
Inability of muscle fibers to contract after a long period of contraction?
muscle fatigue
What is the role of slow muscle fibers and fast muscle fibers in the response of a muscle to different types of exercise?
There are two broad types of voluntary muscle fibers: slow twitch and fast twitch. Slow twitch fibers contract for long periods of time but with little force while fast twitch fibers contract quickly and powerfully but fatigue very rapidly.
Which kind of muscle fibers contract rapidly?
fast twitch
What is it called when white muscle fibers that contract quickly?
striated
Muscle fibers contract and relax in response to what?
nerve impulses
Once a motor neuron has fired all the muscle fibers in a muscle contract.?
False
Once a motor neuron has fired all the muscle fibers in a muscle contract?
False
When a single neuron sends a strong enough impulse to a muscle that how many muscle fibers does it cause to contract?
This will depend upon the number of muscle fibers the nerve innervates. However, all fibers innervated by the nerve should contract in response to the neuronal impulse.
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