Question

PLZ HELP FAST! Explain how muscles and bones work together to help bend the arm.

Answer 1

Sample Response: When the muscle on the top of the arm relaxes and the muscle on the bottom of the arm contracts, the arm straightens. When the muscle on top of the arm contracts and the muscle on the bottom of the bone relaxes, the arm bends. Muscles work in pairs to create movement.

Step-by-step explanation:

Answer 2

Muscles attach to tendons and ligaments that attach to bones allowing our arms to move.

Step-by-step explanation:

The muscles pull the bone causing movement. The movements our arms make is controlled by the brain and the nervous system.