STANDARDZoology-Locomotion and Movement
STANDARD Zoology Muscle Contraction MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Stimulation of a muscle fibre by a motor neuron occurs at
A
The myofibril
B
The sarcoplasmic reticulum
C
The neuromuscular junction
D
The transverse tubules
Correct Answer
Option C
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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