Muscular System
The muscular system of the body is basically what creates movement, although muscles, joints, and bones are needed. There are many types of tissue in the muscular system. First, (obviously), muscular tissue makes up the muscle. Second, there is connective and nervous tissue, connecting the different muscles, and telling us when to move what. The muscular system is made up of skeletal, smooth and cardiac muscles. Skeletal muscles help expand and contract to create motion. There are two kinds of these muscles. Flexors, that bend limbs (biceps), and extensors (triceps). These are voluntary muscles. Cardiac muscles are generally involuntary, such as the heart. These are very important, as life would be very hard if we had to constantly tell our heart to keep beating. Smooth muscles, like the digestive tract, are also involuntary and very important.
The muscular system also interacts with the skeletal system to form the musculoskeletal system. This system is what creates and carries out the process of movement. Muscles pull on the bones to create movement, and the bones are what give us structure so that we can move. |
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