The part of the respiratory system with the largest internal surface area is the ___________.
A)bronchi
B)visceral pleura
C)alveoli
D)trachea

Question

Quizplus · Accepted Answer

The alveoli are small sacs within the lungs where gas exchange occurs between the air and blood. They have a very large surface area, estimated to be around 70 square meters in humans. This large surface area allows for efficient oxygen uptake and carbon dioxide removal from the body.

The Part of the Respiratory System with the Largest Internal