The Muscle Song was very informative on the positions of the muscles and their functions. In the first verse the song states the obvious, provided that muscles are everywhere. The are about 600 different muscles in our bodies, and they fit into 3 main categories: skeletal, smooth, and cardiac. A muscle that works in our cheeks is called the masseter. It allows the person to speak and smile, pulling the facial skin with it. To be able to look from side to side, or rotate, the head utilizes the stenomastoids. The head is attached to the shoulders by the strong trapezius muscle. To lift our arms we use our deltoids. In our arms we have biceps and triceps. The pectorals in the chest are what connects the sternum to the humerus. The biggest muscle in our body is the latissimus dorsi in our back. The quadriceps are in the thigh, and are the strongest muscles in our body. The calf muscle is the gastrocnemius. Our butt is composed of the gluteus maximus. Smooth muscles make up our organs and blood vessels. The cardiac muscle is what the heart is made of.
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