What Happens to the Amount of Smooth Muscle Found in the Walls

question 38

Multiple Choice

What happens to the amount of smooth muscle found in the walls of the respiratory tract as it moves down from the upper conducting zone to the lower respiratory zone?

• A)increases
• B)decreases
• C)thins
• D)It is not found in the conducting zone.
• E)no change

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Definitions:

Evolved Module

A concept in psychology suggesting that certain mental faculties or predispositions have been developed through natural selection over time to solve specific problems of survival or reproduction.

Fear Learning

The process of acquiring fears through conditioning, where an initially neutral stimulus becomes associated with a fearful or traumatic event, causing future fear responses.

Preparedness

The state of being ready and able to deal with specific situations, often referring to psychological readiness to perceive certain stimuli as connected.

Reaction Range

A concept in genetics denoting the extent of possible phenotypic variations for a trait given a certain genotype, influenced by environmental conditions.