The muscles can only pull, not push. So, to move a limb, one muscle relaxes while the other muscle pulls.
They are the muscles. Muscles contract in pairs to move the parts across the joint. One muscle contract with more power. The opposite muscle contracts with less power and get stretched over to allow the first muscle to act.
The muscles can only pull, not push. So, to move a limb, one muscle relaxes while the other muscle pulls.
The muscles can only pull, not push. So, to move a limb, one muscle relaxes while the other muscle pulls.
Legs.
Bones help support the body. If you didn't have them you would collapse. The 4 types of joints in the bones help you move your body parts.
No.
Legs you idiot
all the body parts help it move and work
buang kayo
the muscles in the body help the skeletal system as they help the body parts move very smoothly and flexiblely
The muscles can only pull, not push. So, to move a limb, one muscle relaxes while the other muscle pulls.
brains help the body parts move and so people can live no brain no life