Asked by Savannah Grosse on May 11, 2024
Verified
What keeps the alveoli open so that gas exchange can take place?
A) rings of cartilage
B) surfactant
C) smooth muscle
D) mucus
E) air
Surfactant
A substance that reduces the surface tension of a liquid, aiding in processes such as lung function and cleaning.
Alveoli
Tiny air sacs in the lungs where gas exchange takes place, oxygen enters the blood, and carbon dioxide is removed.
- Detail the procedure and necessity of exchanging gases in the respiratory organs.
Verified Answer
GN
Gregor NikoleMay 12, 2024
Final Answer :
B
Explanation :
Surfactant is a detergent-like substance secreted by cells in the alveoli that helps to reduce surface tension and prevent the collapse of the alveoli during exhalation.
Learning Objectives
- Detail the procedure and necessity of exchanging gases in the respiratory organs.