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.

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Definitions:

Phosphate Groups

Chemical groups containing phosphorus and oxygen that play a crucial role in the energy transfer within cells.

Energy

The capacity to do work.

Thymine Dimers

Molecular lesions formed by covalent bonding between two adjacent thymine bases in DNA, often as a result of ultraviolet radiation.

UV Light

Ultraviolet light, a type of electromagnetic radiation with wavelengths shorter than visible light but longer than X-rays, harmful to living tissue.