velleee
velleee
30-10-2020
Health
contestada
Which muscle relaxes when the arm extends?
Respuesta :
emily82039
emily82039
30-10-2020
triceps
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. To straighten the elbow, the triceps contract and the biceps relax.
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