Question

Roles of surfactant in body

Answer 1

Answer:

The main functions of surfactant are as follows: (1) lowering surface tension at the air–liquid interface and thus preventing alveolar collapse at end-expiration, (2) interacting with and subsequent killing of pathogens or preventing their dissemination, and (3) modulating immune responses.

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Answer 2

Answer:

The main functions of surfactant are as follows:

(1) lowering surface tension at the air-liquid interface and thus preventing alveolar collapse at end-expiration,

(2) interacting with and subsequent killing of pathogens or preventing their dissemination, and

(3) modulating immune responses.

Explanation:

Pulmonary surfactant is a mixture of lipids and proteins which is secreted into the alveolar space by epithelial type II cells.

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