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IRINA_888 [86]
3 years ago
5

The accompanying figure best represents what happens at a(n) ____.

Biology
1 answer:
Furkat [3]3 years ago
5 0

Answer: Option D: Neuromuscular junction

Explanation:

This is the site of transmission of chemical signal also known as a chemical synapse between a neuron and a muscle fibre. Most of the time the chemical released which is a neurotransmitter is acetylcholine. When released, it stimulates the release of calcuim ions present in the sarcoplasm: an endoplasm like structure in the muscle fiber that contains calcium ions.

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