Are myotubules the command to contract is distributed throughout a muscle fiber?
A myotubule is a skeletal muscle fiber which has a centrally located nucleus. Skeletal muscle fibers allow you to flex body parts.
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About Muscle
There are over 600 muscles in the body. They do everything from pumping blood throughout your body to helping you lift heavy objects. You control some of your muscles, while others (like your heart) do their jobs without your even thinking about them at all. Muscles are the tissues in the body that contract and affect the movement of and within the body. Muscle tissue is classified as striated, smooth, or cardiac, according to its structure and function.
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