ANATOMY

Detailed explanation-1: -Muscles can pull bones, but they can’t push them back to the original position. So they work in pairs of flexors and extensors. The flexor contracts to bend a limb at a joint. Then, when the movement is completed, the flexor relaxes and the extensor contracts to extend or straighten the limb at the same joint.

Detailed explanation-2: -Skeletal muscles are connected to your bones by tough cords of tissue called tendons (TEN-duhns). As the muscle contracts, it pulls on the tendon, which moves the bone.

Detailed explanation-3: -Skeletal muscles attach to and move bones by contracting and relaxing in response to voluntary messages from the nervous system. Skeletal muscle tissue is composed of long cells called muscle fibers that have a striated appearance.

Detailed explanation-4: -Muscles move our bodies. To do so, they contract, which then generates movement. Share on Pinterest Muscles use energy from our food to produce movement.

Detailed explanation-5: -Two skeletal muscles work together to move a bone. When one muscle of the pair contracts, the other muscle is relaxed. The alternate contraction and relaxation of the muscles bring about the movement by enabling the bone to move in a specific direction.