In late adults, the amount of air left in the lungs after expiration of the maximum amount of air:
A. remains unchanged because the lungs have become accustomed to years of breathing pollution.
B. increases, which hampers diffusion of gases because of stagnant air that remains in the alveoli.
C. decreases, which increases diffusion in the lungs and causes an accumulation of carbon dioxide.
D. decreases, resulting in widespread collapsing of the alveoli and impaired diffusion of gases.
Ans: B. increases, which hampers diffusion of gases because of stagnant air that remains in the alveoli.
You might also like to view...
What is the difference between an RN and an LPN?
What will be an ideal response?
When bonding occurs, a certain amount of heat is absorbed (called a(n) ____ reaction).
A. exothermic B. endothermic C. molecular D. pyrothermic
Which of the following compounds initially condenses to form aminolevulinic acid?
A. Coproporphyrinogen and urobilinogen B. Glutamic acid and alanine C. Acetylcholine and epinephrine D. Succinyl coenzyme A and glycine
The name given to the initiative that integrates performance and outcome measures into the accreditation process is:
A) AHA. B) HIPAA. C) ORYX. D) JCAHO. E) CMS.