STANDARD Zoology Muscle Contraction MCQ Question
Stimulation of a muscle fibre by a motor neuron occurs at
The myofibril
The sarcoplasmic reticulum
The neuromuscular junction
The transverse tubules
Correct Answer
Detailed Explanation
Muscle fibre is stimulated at the neuromuscular junction. It is a chemical synapse formed by the contact between a motor neuron and a muscle fibre. When the nerve impulse reaches the axon terminal, a chemical referred to as neurotransmitter is released into the synapse.
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