In a skeletal muscle, T – tubules

Secrete acetylcholine

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Gives mechanical support

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Conducts impulses forward

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Bring about calcium flow for muscle contraction

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Solution

The correct option is C Conducts impulses forward
T –tubules are a part of sarcoplasmic reticulum of muscle cells. Calcium is stored in the sarcoplasmic reticulum.The function of T-TUBULES is to conduct impulses from the surface of the cell (sarcolemma) down into the cell. Acetylcholoine is present in the axon terminals of tne neurons.

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According to the sliding filament mechanism of skeletal-muscle contraction, during contraction:

C a^{2 +}

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