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Maslowich
3 years ago
14

Explain which muscle contracted and which muscle extends as you raised the weight

Biology
1 answer:
marta [7]3 years ago
3 0
the flexor<span> relaxes and the </span>extensor <span>contracts to extend or straighten the limb at the same joint: For example, the </span>biceps muscle<span>, in the front of the upper arm, is a </span>flexor<span>, and the </span>triceps<span>, at the </span>back<span> of the upper arm, is an </span>extensor<span>.</span>
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