Practice 2: Match the structure to the correct description.
A. Trachea
B. Bronchus
C. Mouth & Nose
D. Bronchiole
1. Air comes into the body through these structures
2.
345
E. Alveoli
Tiny air sacs that are the site of oxygen and carbon dioxide exchange
A series of fine tubes that lead to the alveoli
Air travels from the mouth and nose to the lungs through this structure
The trachea branches into this structure