Your Amazing Muscular System By Samantha and Niki
Your Wonderful Muscles The Muscular System is a very important part of the human body. Some muscles help by pumping blood to the heart, some help you digest, and others help you move. If you didn’t have muscles your blood wouldn’t get pumped to the heart, you couldn’t digest, and you couldn’t move.
Your Miraculous Muscular System Did you know that there are three different types of muscles. Their names are cardiac, smooth, and skeletal. The cardiac and smooth muscles are involuntary. Involuntary muscles work without you thinking about it. The skeletal muscles are voluntary. Voluntary muscles let you control them.
A Little Bit More About Your Muscles Most of your skeletal muscles are attached to bones. Your muscles help you move by pulling on the bones and making them move. Not all muscles are attached to your bones. Some other types of muscles like cardiac and smooth muscles aren’t hooked to bones. The cardiac muscle helps by pumping blood to the heart from other parts of the body. The smooth muscle helps by tightening up and relaxing to let food pass through your small and large intestine.
It’s Very Important to Keep Your Muscles Healthy Your muscles are very important, so you need to keep them healthy. If you don’t your muscles would be very weak and it would be hard for you to play sports and do other activities. You should take good care of your muscles because your muscles take good care of you. Keeping your muscles healthy helps you stay healthy.
Healthy Muscles Make Happy Muscles One way to keep your muscles healthy is to exercise daily. When you exercise your muscles grow. Walking around all day helps your muscles a little bit, but doing extra exercise really helps. Running, doing sit-ups, push-ups, and other things like that make your muscles very healthy.
A Few Fun Facts About Your Muscular System There are muscles in the root of your hair that give you goose bumps. It takes 17 muscles to smile and 42 muscles to frown. The hardest working muscle is in the eye. The largest muscle in your body is the Gluteus Maximus.
Even More Fun Facts The smallest muscle in your body is located in the ear. It is called the Stapedius. There is a muscle in your eye that helps it move. The longest muscle is the body is the Sartorious. Most muscles are attached to bones. The foot and the leg muscles help you walk and run.
Bibliography Amazing Human Body CD-ROM. New York: DK Interactive Learning, 1997. Discovery Communications Inc. "Your Gross & Cool Body." The Yuckiest Site on the Internet 2000. On-line. Internet. June 15, 2001. Available: http://yucky.kids.discovery.com/flash/body/ McGann, Andrew. “The Skeletal System.” A Look Inside the Human Body. On-line. Internet. June 15, 2001. Available: http://bart.northnet.com.au/~amcgann/body/index.html Nourse, Alan. The Body. Morristown: 1980 Silver Burdett Company Scholastic. The Magic School Bus Explores the Human Body CD-ROM. Microsoft Corporation, 1995.