At the very end of the appointment when you are walking out <span />
I wanna say the answer to this is dream let me know if i'm right:)
Answer:
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.
Explanation:
Answer:
Physically inactive people can lose as much as 3% to 5% of their muscle mass each decade after age 30.
Explanation:
Hopes this helps ?
