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Muscle contraction is initiated by a sig...

Muscle contraction is initiated by a signal sent by the _____

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Central nervour system
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Which of the following statements about the mechanism of muscle contraction are correct ? (i) Acetylcholine is released when the neural signal reaches the motor end plate. Muscle contraction is initiated by a signal sent by CNS via sensory neuron. (iii) During muscle contraction, isotropic band gets elongated (iv) Repeated activation of the muscles can lead to lactic acid accumulation.

Which statements about muscle contractions are true (i) Acetylcholine is released when neural signal reaches motor end plate (ii) Muscle contraction is initiated by a signal sent by CNS via a sensory neuron (iii) During muscle contraction , isotropic band gets elongated (iv) Repeated activation of the muscle can lead to lactic acid accumulation .

Which of the statements about the mechanism of muscle contraction are corrcet (I) Acetylcholine is released when the neural signal raches the motor end plate (II) Muscle contration is initiated by a singnal sent by CNS via a sensory neuron (III) During muscle contration, isotropic band gets elongated (IV) Repeated activation of the muscles can be lead to lactic acid eccumulation

During muscle contraction

During muscle contraction

During muscle contraction