Question

. How do the muscles attached to bones bring about movement ? Name the two types of muscles which are involved in bending and straightening of arm.​

Answer 1

Answer:

The movement of body parts and locomotion in human beings is brought about by the alternate construction and stitching of the muscles attached to the movable bones of the skeleton. When muscles pull on bones by contraction they produce movement such as walking , bending of hand moving head and straightening of arms. The contraction of muscles which brings about movement is controlled by brain.

The biceps and triceps muscles are involved in bending and straightening of arm.

Answer 2

Answer:

Skeletal muscles are attached to the skeleton by tough connective tissues called tendons(see Figure above). Many skeletal muscles are attached to the ends of bones that meet at a joint. The muscles span the joint and connect the bones. When the muscles contract, they pull on the bones, causing them to move.

the two types of muscles which are involved in bending and straightening of arm Biceps and Triceps.

Explanation: