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When a muscle receives a signal from the nerves around it, the signal travels down the cell's membrane in folds called t-tubules. What will happen next to continue the contraction process?

User Lionels
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The nerves send a message to the muscle asking them to reach out and contract. When the muscle receives a signal from the nerves around it, the signal travels down the cell's membrane in folds called t-tubules. When the signal reaches the sarcoplasmic reticulum the calciumpumps open allowing calcium ions
User Joshua Olson
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