3. Which of these would increase the difficulty of inspiration (more than one an

Question

3. Which of these would increase the difficulty of inspiration (more than one answer may be correct)?
A) Decreased mucus in airways B) Increased viscosity of air C) Bronchodilation D) Decreased surfactant 3. Which of these would increase the difficulty of inspiration (more than one answer may be correct)?
A) Decreased mucus in airways B) Increased viscosity of air C) Bronchodilation D) Decreased surfactant 3. Which of these would increase the difficulty of inspiration (more than one answer may be correct)?
A) Decreased mucus in airways B) Increased viscosity of air C) Bronchodilation D) Decreased surfactant

Explanation / Answer

Difficulty in breathing is known as Dyspnea. This may occur due to increased viscosity of air or decreased surfactant.

Decreased Surfactant (also known as Surfactant Dysfunction) :-

This condition occurs due to abnormalities in the function or composition of the surfactant, which are present in the tissue surrounding alveoli in lungs. The alveoli collapses due to sticking of tissues around air sacs in the lungs due to surface tension, in the absence of surfactant.

The correct answer is

(D) and (B)

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