Pharynx is a passageway connecting the mouth and nose to the esophagus. It is the number 1.
The bronchial tubes are located inside the lungs, being a big branch of tube in each lung. It is number 3.
The lungs are two big organs located in the chest cavity. It is number 4.
Diaphragm is the major muscle of respiration, located below the lungs. It is number 7.
The epiglottis prevents food and drinks to go inside the trachea, and it is located behind the tongue and above the larynx. It is number 5.
The larynx houses the vocal chords, being located in the nedck, above the trachea. It is number 6.
The trachea connects the larynx to the lungs. It is number 2.