In Emphysema, the Lungs Become Overdistended with Trapped Air

question 69

Essay

In emphysema, the lungs become overdistended with trapped air. Effective abdominal breathing is decreased. Describe the muscles involved when breathing becomes an active process, such as a patient who has emphysema.

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Definitions:

Interaction Effect

A phenomenon in which the effect of one independent variable on a dependent variable changes depending on the level of another independent variable.

Main Effect

In an experimental setup, the direct impact that an independent variable exerts on a dependent variable.

Factorial Research

A methodological approach in experiments that involves studying the effects of two or more factors.

Single-Factor Research

A study design where the effects of one independent variable on a dependent variable are examined.