Science, asked by shikhagoel2323, 4 months ago

Q7. If a boy bends his arm then: -

a) Which of the muscle contracts ?

b) Which of the muscle relaxes ?​

Answers

Answered by spehal1977
1

Explanation:

When the biceps contract the triceps will relax, this allows our arm to bend. When we want to straighten our arm back out, the biceps will relax and the triceps will contract.

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