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Yonathan Alberto Charris Torres
on Dec 19, 2024

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Pulmonary surfactant functions by:

A) increasing the cohesive forces of water molecules.
B) increasing the surface tension of water.
C) moving water across respiratory surfaces.
D) preventing the alveoli from expanding.
E) increasing the energy required to stretch the lungs.

Pulmonary Surfactant

A complex mixture of lipids and proteins secreted by cells in the lungs, reducing surface tension and preventing the collapse of alveoli at the end of expiration.

Alveoli

Tiny air sacs in the lungs where gas exchange between the air and blood takes place.

Cohesive Forces

Attractive forces between similar molecules that hold a substance together, such as the attraction between water molecules.

  • Illustrate the framework and utility of the human respiratory system.
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ethan2 lehotskyDec 20, 2024
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