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Learn human body: the muscular system

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One of the most amazing things about the body the incredible range of movement and abilities it has. One of the functions of the muscular system Muscles perform four important body functions so we can move wherever we want This day-to-day activity is accomplished by our muscles to the extraordinary and fascinating hability of converting chemical energy, energy stored in the nutrients into mechanical energy, energy of movement. they also help move food from one organ to another by generating heat that the body requires wow! that's crazy! but, how many muscles do we have? Smooth muscles are found in the body organs and are active all of your body These muscles are also called involuntary muscles because you can’t control this type of muscle, the brain and your body tell these muscles what to do without you even thinking about it. For example in your stomach and the digestive system these muscles contract … and relaxe to allow food to make its journey through the body you don’t have to focus on digesting your food; it happens all by itself. The muscle that makes up the heart is called the cardiac muscle. Just like the smooth muscles these are also involuntary muscles and work all by themselves with no help from you. This way we do not think about our heart beaten constantly. Think how bad it would be to have to consciously and constantly tell your heart to beat and what if you forget? Oh! Oh! So you see, cardiac muscles … the big muscles of the heart contract to pump blood out out and then relax to let blood back in …circulate throughout the body. Skeletal muscles. The skeletal muscles are the only voluntary muscles of your body which means you can control what to do. The skeletal muscles covers the bony skeleton and together give your body power and strength. Skeletal muscles come in many different sizes and shapes to allow them to do ---- of jobs. These are the kind of muscles you think of when you say muscle. The skeletal muscles show how strong you are and allow you to control body movements, for example you kick a soccer ball into the goal, exercise your weight training can help you increase the skeletal muscles size. Here are some tips You can walk, you can cycle, you can swim, you can run and climb the stairs can be really fun. For example walking, jogging, cycling, swimming and climbing stairs are just a few examples of aerobic activity. Exercises that increase the size and strength of muscles are called anaerobic exercises. Examples: strength training or .. and sprinting When combined with exercise the following also help the muscular system. leafy vegetables and whole grain cereals and yummy fruits and lots and lots of water. and no tension.

Video Details

Duration: 5 minutes and 6 seconds
Country: Spain
Language: English
Views: 151
Posted by: mjosferreiro on Mar 27, 2012

Our muscles

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