How Muscles Work and Join to Your Bones

When you make a movement your brain sends a message to your muscle to tell the muscle to make that movement. Some movements you don’t control. Your heart controls some of your movements. Your heart is a big muscle? When you breathe, your heartbeats, and blood flows out of your heart, and to the rest of your body. Your heart must beat all the time, even when you are asleep. There are muscles in your stomach that work without being told. When you give food to your stomach those muscles move, those muscles also move to help you digest your food. Some of your muscles work with each other, so one muscle may rest while the other must work. While one of muscles are working, it contracts. To contract means to become smaller, than before, it also becomes shorter, and thicker. While a muscle contracts the muscle pulls on the bone to which it is attached to. This causes the muscle to move. When a muscle relaxes it becomes longer, and it also stretches out. Your Tendons are long fibrous cords that connect your bones, and muscles. Your Achilles tendon is located around your ankle. It so happens to be the biggest tendon in your body. It connects calf muscles with heel bones. If you didn’t have tendons you wouldn’t be able to move.