Which Normal Physiologic Change Occurs in the Aging Pulmonary System

question 13

Multiple Choice

Which normal physiologic change occurs in the aging pulmonary system?

• A)Decreased flow resistance
• B)Fewer alveoli
• C)Stiffening of the chest wall
• D)Improved elastic recoil

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Definitions:

Conditioned Response

A learned reaction to a conditioned stimulus that occurs because of prior conditioning.

Conditioned Stimulus

A previously neutral stimulus that, after becoming associated with an unconditioned stimulus, eventually triggers a conditioned response.

Neutral Stimulus

A stimulus that initially produces no specific response other than focusing attention.

Unconditioned Response

An automatic, natural response to a stimulus that occurs without prior learning or conditioning.