Where in the body is oxygen and carbon dioxide exchanged?
A)During inspiration and expiration
B)During inhalation and exhalation
C)Between the alveoli and capillaries
D)At the pharynx and larynx

Question

Quizplus · Accepted Answer

Oxygen and carbon dioxide exchange occurs between the alveoli and capillaries in the lungs. During inhalation, oxygen from the air enters the alveoli and diffuses into the capillaries. At the same time, carbon dioxide from the capillaries diffuses into the alveoli and is exhaled during expiration.

Where in the Body Is Oxygen and Carbon Dioxide Exchanged