Question

muscles work in pairs by .....and......​

Answer 1

Answer:

Skeletal muscles only pull in one direction. ... For this reason they always come in pairs. When one muscle in a pair contracts, to bend a joint for example, its counterpart then contracts and pulls in the opposite direction to straighten the joint out again.

Muscles work in pairs and sometimes in more than pairs (2) because it makes the movement smooth. The muscle that is making the move is called the prime mover while another is called the antagonist and it resists the move. It slowly "lets go".

Explanation:

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