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The contraction is triggered by the release of calcium within the muscle which is triggered by an electrical signal from a nerve.
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Earn +20 ptsQ: What usually triggers muscle fibers to contract or relax?
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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.
Principle by which muscle fibers contract?
Sliding filament mechanism
What is it called when white muscle fibers that contract quickly?
striated
Which kind of muscle fibers contract rapidly?
fast twitch
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
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