Learn about the respiratory system.
In addition to taste, smell is also important when we understand what it is we eat. The bakery smells good of all freshly baked bread. While the smell from a trash can on a hot summer day can make us feel bad.
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Our ear can receive the sound waves and convert them into electrical signals so that the brain can tell us what it is we are hearing.
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Most people think that sight is our most important mind. With sight, we can orient ourselves in our surroundings, experience colors, recognize faces, read and much more. Everything with our eyes.
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The brain sends signals out to our muscles so we can walk or move, so-called will-controlled nerve functions. But the brain also controls non-will-controlled nerve functions, such as breathing and the heart beating ...
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The human body needs the gas oxygen to be able to function. The body can assimilate the oxygen present in the air through the lungs which are part of our respiratory organs.
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The human body consists of tiny tiny cells, together they become billions of cells. And they all need nutrition and oxygen to function. It is through the blood that oxygen and nutrients are transported out to all the cells of the body. In other words, the bloodstream is the body's own built-in transport system.
2 år sedan