What Effects Does Aging Have on Airway Closure

question 9

Multiple Choice

What effects does aging have on airway closure?

• A) Airway closure occurs at lower lung volumes.
• B) A loss of pulmonary elastic recoil results in an increase of intrapleural negative pressure.
• C) A loss of pulmonary elastic recoil results in a loss of intrapleural negative pressure.
• D) Airway closer is improved with smoking and changes in body shape.

---

Definitions:

Monozygotic

Referring to twins that are genetically identical because they were formed from a single fertilized egg that split into two.

Chromosome

A thread-like structure made of protein and a single molecule of DNA, found in the nucleus of cells, carrying genes that determine inherited traits.

Genetic Action

The process by which genes influence traits or behaviors.

Hormone Levels

The concentrations of hormones present in the bloodstream, which regulate various bodily functions and can affect mood, growth, and metabolism.