Question Detail

ZOO 101 Gas Exchange and Respiration in Mammals Objective Question

Question

During inhalation, what happens to the volume and pressure inside the thoracic cavity?
Options
A Volume increases, pressure increases
B Volume decreases, pressure decreases
C Volume increases, pressure decreases
Correct Answer
D Volume decreases, pressure increases
Correct Answer

Option C is the correct answer.

Detailed Explanation

During inhalation, the volume of the thoracic cavity increases, which decreases the pressure inside the lungs, causing air to flow in.

Hint

Air moves from areas of high pressure to low pressure.

Question Info