How does the Body Work?

Have you ever wondered how the body works?
The body uses several different systems to keep it going, such as the nervous system, the skeletal system, the respiratory system, the muscular system, the cardio vascular system, the digestive system and the circulatory system.

The nervous system includes your brain and eyes. Your eyes use muscles to turn so that shows that all your systems have to work together to help you stay alive. If you didn’t have your brain you would be dead because your brain controls what your body must do like all your emotions, walking, how to talk, and it even tells your heart to beat.

Your heart is like a pump. It pumps blood all around your body, which keeps you alive. Your heart is located in the centre of your chest. Did you know that your heart is actually hollow? It fills up with blood and then squeezes it out so that it is pumped all around your body.

Your lungs help you breathe, but to breathe you need oxygen. Your Alveoli transfers oxygen into your blood and the carbon dioxide out. Alveoli are very tiny; about 400 of them would fit into one square centimetre. Alveoli are tiny sacs at the ends of the bronchus inside the lungs.

So to help your body stay alive, you need all your systems to work together.

By Ruby.