How Does Pulmonary Surfactant Keep the Alveoli Open at All

question 108

Multiple Choice

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.

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Definitions:

Spherical Cell

A cell characterized by a round shape, common in various types of unicellular organisms and some animal cells.

Columnar Cell

A type of epithelial cell that is taller than it is wide, often found lining organs such as the intestine, where it aids in absorption and secretion.

Prevent Water Loss

Mechanisms or behaviors that organisms deploy to retain moisture and avoid dehydration.

Keratinized Stratified Squamous Epithelium

This refers to a type of tissue composed of multiple layers of cells, with the outer layers being hardened by keratin, providing protection against abrasion, dehydration, and infection.