Surfactants
A)are secreted by cells within the alveoli.
B)increase surface tension.
C)transport oxygen across the alveolar-pulmonary capillary membrane.
D)relax the epiglottis so as prevent upper respiratory obstruction.

Question

Quizplus · Accepted Answer

Surfactants are produced by type II alveolar cells within the alveoli of the lungs. Their primary function is to decrease surface tension, facilitating easier gas exchange and preventing alveolar collapse.