Respiratory System - Introduction | Biology for All | FuseSchool

Your respiratory system is a system in humans that is designed to extract oxygen from the air so we can use it in respiration around the body and at the same time get rid of carbon dioxide gas into the air which is the waste product from respiration. oxygen gas travels through the respiratory system, as you inhale, the molecule is drawn in through the mouth or the nose, it goes into the back of the throat where it enters a tube called the trachea. The tractor or windpipe has special rings of cartilage to k