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Which of these constitute a motor unit?

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in Biology – Class 11 by (272k points)
Which of these constitute a motor unit?

(a) Motor neuron + muscle fibres

(b) Motor neuron + fascia

(c) Motor neuron + muscle

(d) Motor neuron + muscle bundle

I had been asked this question during an online interview.

The origin of the question is Locomotion & Movement in division Locomotion and Movement of Biology – Class 11

1 Answer

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Best answer
Right option is (a) Motor neuron + muscle fibres

The best explanation: Muscle fibres connected to a motor neuron make up a motor unit. The motor neuron carries an impulse from the CNS or the central nervous system which stimulates the muscle to contract.

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