The Respiratory System
Organs and structures are what make up the respiratory system. After the air enters the nasal cavity it goes through the Pharynx. The pharynx is in the back of your throat. There is a flap of skin called the epiglottis. The epiglottis separated the food from the air. When you inhale the epiglottis opens the airway and when you eat or drink it closes the airway.
The Larynx and The Trachea
The Makeup of your Lungs
The bronchi is at the bottom of the trachea and it splits the air evenly to the left lung to the right lung.
The bronchioles are even littler than the bronchi. They are little tubes that break off of the bronchi and take the oxygen to the alveoli.
The Alveoli is at the end of each set of bronchioles. They are like clusters of grapes. The alveoli are surrounded by capillaries that carry blood. This is where oxygen moves out of the lungs and into the blood.