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Question
In a skeletal muscle, T – tubules
Options:
A .  Secrete acetylcholine
B .  Gives mechanical support
C .  Conducts impulses forward
D .  Bring about calcium flow for muscle contraction
Answer: Option C
:
C
T –tubules are a part of sarcoplasmic reticulum of muscle cells. Calcium is stored in the sarcoplasmic reticulum.Thefunction of T-TUBULESis 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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