How does pulmonary surfactant keep the alveoli open at all times?
A) It reduces the surface tension between the walls of the alveoli.
B) It increases the water content in the lungs.
C) It reduces friction within the alveoli.
D) It actively pulls the alveoli open as we inhale.
Correct Answer:
Verified
Q56: Which cells produce surfactant?
A) Type I cells
B)
Q57: The region of the lung served by
Q58: The detergent-like molecule that keeps the alveoli
Q59: Alveolar pores
A) allow gases to transfer from
Q60: Lung cancer occurs slightly more frequently in
Q62: The alveoli continue to form until
A) birth.
B)
Q63: Which muscle contracts during forced expiration?
A) internal
Q64: Which structure does not enter or exit
Q65: The aortic bodies
A) sense the concentration of
Q66: Which muscle is used for both quiet
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