HUMAN NUTRITION

NUTRITION

THE HUMAN BODY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How do muscles and bones work together to create body movement?
A
the muscles pull on the bones
B
the muscles protect the bones
C
muscles grow at the same rate as bones
D
muscles send electrical impulses to bones
Explanation: 

Detailed explanation-1: -Your muscle fibers contract (tense up) in response to the message. When the muscle activates or bunches up, it pulls on the tendon. Tendons attach muscles to bones. The tendon pulls the bone, making it move.

Detailed explanation-2: -Muscles provide the tug on the bones needed to bend, straighten, and support joints. Muscles can pull on bones, but they can’t push them back to their original position, so the muscles work in pairs of flexors and extensors. The extensor muscle relaxes and stretches as the flexor muscle contracts to bend the joint.

Detailed explanation-3: -A muscle can only pull and cannot push. Hence, two muscles work together to move a bone.

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