Question

out of biceps and triceps muscles which one cause straightening of arm

Answer 1

pullup and bench press

Answer 2

Each muscle in the pair works against the other to move bones at the joints of the body. The muscle that contracts to cause a joint to bend is called the flexor. ... The biceps and triceps act against one another to bend and straighten the elbow joint. To bend the elbow, the biceps contracts and the triceps relaxes

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