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Muscles enable the heart to beat, the chest to rise and fall during breathing, and blood vessels to help regulate the pressure and flow of blood through the body. When we smile and talk, muscles help us communicate, and when we exercise, they help us stay physically fit and healthy.
---Bones form the structure for our body, while muscles are responsible for pulling the joints, allowing â¦ us to move. The cartilage, muscles, ligaments, and tendons, all working as one holding bones together and letting joints move. Muscles connect the joints to the bones.