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What happens after the electricity reaches the muscles?
After electricity reaches the muscles, it triggers the release of calcium ions within the muscle fibers. This causes the muscle fibers to contract and generate force, allowing movement to occur.
What is muscle protein?
it is tiny muscle fibers that contract and expand the muscle
What is it called when white muscle fibers that contract quickly?
Fast-twitch muscle fibers.
When a single neuron sends a strong enough impulse to a muscle that how many muscle fibers does it cause to contract?
When a single neuron sends a strong enough impulse to a muscle, it can cause multiple muscle fibers within that muscle to contract. The specific number of muscle fibers that contract will depend on factors like the size of the motor unit and the intensity of the signal from the neuron.
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.
Does glycerinated skeletal muscle fibers need calcium in order to contract?
Yes, glycerinated skeletal muscle fibers still require calcium in order to contract. The glycerination process maintains the basic structure of the muscle fibers but removes cellular components, allowing for the fibers to contract in response to calcium in a controlled laboratory setting.
Why is ATP required for muscle contraction?
ATP is required for muscle contraction because it provides the energy needed for the muscle fibers to contract and generate force. Without ATP, the muscle fibers would not be able to move and contract effectively.
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.
Muscle fibers contract and relax in response to what?
nerve impulses
Principle by which muscle fibers contract?
Sliding filament mechanism
Once a motor neuron has fired all the muscle fibers in a muscle contract?
False
