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Question: 1 / 400

What is the main function of pneumocytes type II?

Line alveoli

Produce anti-inflammatory secretions

Produce surfactant

The primary function of type II pneumocytes is the production of surfactant, a critical substance in the lungs. Surfactant is a complex mixture of lipids and proteins that reduces surface tension within the alveoli, preventing alveolar collapse during exhalation. By maintaining the stability of the alveoli, surfactant plays a vital role in enhancing lung compliance and ensuring efficient gas exchange.

Pneumocytes type II are also involved in the repair and regeneration of the alveolar epithelium following injury, and they help to prevent edema in the alveoli. However, their most significant and well-understood role is the synthesis and secretion of surfactant, making option C the correct answer.

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Assist in gas exchange

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