APPLIED RADIOLOGICAL ANATOMY

ANATOMY

MUSCULOSKELETAL AND SOFT TISSUE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
what do muscles do for the body?
A
They help the body digest food
B
they help your body parts move in diffrent ways
C
help the body breathe
D
it pumps blood throw the body
Explanation: 

Detailed explanation-1: -Muscles move body parts by contracting and then relaxing. 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.

Detailed explanation-2: -The muscles work in pairs. When one of them contracts, the bone is pulled in that direction, and the other muscle of the pair relaxes to move the bone in the opposite direction. the relaxed muscle contracts to pull the bone toward its original position, while the first muscle relaxes. A muscle can only pull.

Detailed explanation-3: -Therefore, to move bones in opposite directions, pairs of muscles must work in opposition. Each muscle in the pair works against the other to move bones at the joints of the body. The muscle that contracts to cause a joint to bend is called the flexor.

There is 1 question to complete.