How Does the Respiratory System Work?

1022 Words Jan 25th, 2018 4 Pages
How does the Respitory system work?
The main Function of the respitory system is gaseous exchange. This refers to the process of oxygen and carbon dioxide moving between the lungs and blood. Gaseous exchange in the lungs refers to the movement of oxygen into the body, and the removal of carbon dioxide from the body. It takes place in the lungs, especially in the alveoli surface through diffusion.
During inspiration, the diaphragm and the surrounding muscles contract. The diaphragm moves down increasing the volume of the chest cavity, and the surrounding muscles pull the rib up to allow further increase in volume. This increase of volume decreases the air pressure in the alveoli
During expiration, the diaphragm and all of the surrounding muscles relax. This allows the chest cavity to return to its original volume.
The act of breathing starts from the mouth. You breathe in air through your mouth and nose, and it travels through the back of your throat and down your wind pipe or trachea. Your trachea the divides itself into air passages called bronchial tubes. For your Lungs to perform at their best these passages needed to be clear during inhaling and exhaling. And free from mucus swelling and inflammation.
A persons lung capacity can determine someone’s exercise level because if you have a larger lung capacity it allows your body to take in more oxygen which gives your muscles more energy which means you can do exercise for a longer amount of time.

2. How does the…
Open Document