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Learn more about it through movies, quizzes, articles, and more. Muscles are the only tissue in the body that has the ability to contract and therefore move the other parts of the body. Learn more about it through movies, quizzes, articles, and more. This How the Body Works: Muscles Video is suitable for 4th - 8th Grade. Learn more about it through movies, quizzes, articles, and more. The muscular systems in vertebrates are controlled through the nervous system although some muscles (such as the cardiac muscle) can be Broadly considered, human muscle--like the muscles of all vertebrates--is often divided into striated muscle, smooth muscle, and cardiac muscle. The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles. A special group of cells within the heart are known as the pacemaker of the heart because it controls the heartbeat. The human body is an amazing machine. It permits movement of the body, maintains posture and circulates blood throughout the body. How muscles grow stronger. Your smooth muscles come in handy if you're sick and you need to throw up. Every single muscle in your body consists of many fibers, like ropes made out of different materials. The characters discuss three types of muscles: smooth, cardiac, and skeletal. How the Body Works Main Page - Nemours KidsHealth The action refers to the action of each muscle from the standard anatomical position. Answers: The Muscles Note: All information on KidsHealth is for educational purposes only. The muscles of the human body can be categorized into a number of groups which include muscles relating to the head and neck, muscles of the torso or trunk, muscles of the upper limbs, and muscles of the lower limbs. The thick muscles of the heart contract to pump blood out and then relax to let blood back in after it has circulated through the body. Although they work differently than a car engine or an electric motor, muscles do the same thing -- they turn energy into motion. ; It would be impossible for you to do anything without your muscles. But smooth muscles are at work all over your body. The human body is an amazing machine. Viewers visit the gym where two kids and a body-building adult are working out. In your stomach and digestive system, they contract (tighten up) and relax to allow food to make its journey through the body. How the Body Works Main Page - Nemours KidsHealth Berlin, Heidelberg, London & Amsterdam: Plan your BODY WORLDS experience and inform yourself about prices, opening hours and tickets. Human muscle system, the muscles of the human body that work the skeletal system, that are under voluntary control, and that are concerned with movement, posture, and balance. Related to the function of movement is the muscular system’s second function: the maintenance of posture and body position. If you want to understand how muscle building works, a good place to start is with their anatomy. Learn more about it through movies, quizzes, articles, and more. Muscles are the only tissue in the body that has the ability to contract and therefore move the other parts of the body. For specific medical advice, diagnoses, and treatment, consult your doctor. Muscles are the "engine" that your body uses to propel itself. Learning new words will help you understand how the body works. Related to the function of movement is the muscular system’s second function: the maintenance of posture and body position. Just like smooth muscle, cardiac muscle works all by itself with no help from you.