Question Detail

ZOO 101 Gas Exchange and Respiration in Mammals Objective Question
Take CBT

Question

What happens to air pressure inside the lungs during exhalation?
Options
A It decreases below atmospheric pressure
B It becomes equal to atmospheric pressure
C It increases above atmospheric pressure
Correct Answer
D It remains constant
Correct Answer

Option C is the correct answer.

Detailed Explanation

During exhalation, the volume of the thoracic cavity decreases, which increases the pressure inside the lungs above atmospheric pressure, forcing air out.

Hint

This higher pressure pushes air out of the lungs.

Question Info

Course: ZOO 101
Topic: Gas Exchange and Respiration in Mammals
Type: Objective
Difficulty: Not specified
Question 755 of 2214
Previous Course Details Next