What is the function of the surfactant?

Function. 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.

What is the function of surfactant quizlet?

The function of surfactant is to: trap foreign particles as they enter the bronchial tree. prevent each alveolus from collapsing as air moves in and out during respiration.

What is the purpose of surfactant in the lungs?

Pulmonary surfactant is essential for life as it lines the alveoli to lower surface tension, thereby preventing atelectasis during breathing. Surfactant is enriched with a relatively unique phospholipid, termed dipalmitoylphosphatidylcholine, and four surfactant-associated proteins, SP-A, SP-B, SP-C, and SP-D.

What cells produce surfactant and what is the function of surfactant within the respiratory tract quizlet?

The type 2 cells of the alveoli produce surfactant, which reduces surface tension to keep the alveoli open for gas exchange.

What is surfactants and its purpose?

Surfactants are compounds used in an array of cleaning products for their ability to lower the surface tension of water, in essence making the molecules slipperier, so they are less likely to stick to themselves and more likely to interact with oil and grease. …

What secretes surfactant?

The pulmonary surfactant is produced by the alveolar type-II (AT-II) cells of the lungs. It is essential for efficient exchange of gases and for maintaining the structural integrity of alveoli. Surfactant is a secretory product, composed of lipids and proteins.

What is the main role of surfactant in the neonate?

Surfactant is a liquid made by the lungs that keeps the airways (alveoli) open. This liquid makes it possible for babies to breathe in air after delivery.