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This acts to reduce the tendency of alveoli to collapse; it is a mixture of lipoproteins called what?

Answer 1

Reinflation of the alveoli following exhalation is made easier by pulmonary surfactant, which is a phospholipid and protein mixture that reduces surface tension.

This surfactant creates a phospholipid film that is mainly made up of dipalmitol phosphotidylcholine on top of an underlying aqueous protein that contains hypophase.

The most abundant cells in the alveoli, known as great alveolar cells (granular pneumocytes, a cuboidal epithelia), produce the surfactant, which is continuously released through exocytosis.

Without this surfactant, the alveoli would collapse and a significant amount of force would be needed to expand them again. It helps to lower alveolar tension.

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Answer 2

Dylan Andrews

The mixture of lipoproteins that reduces the tendency of alveoli to collapse is called pulmonary surfactant.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.