Principles of Human Physiology (6th Edition)
Principles of Human Physiology (6th Edition)
6th Edition
ISBN: 9780134169804
Author: Cindy L. Stanfield
Publisher: PEARSON
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Chapter 16, Problem 22E
Summary Introduction

To write:

The balance between distending pressure and the recoil forces acting on the lungs and the chest walls at FRC. Also, explain that the intrapleural pressure is sub-atmospheric.

Introduction:

FRC or the Functional Residual Capacity is the volume of the lung once the normal breath has expired. The FRC is a representation of volume at which the complete lung-chest wall unit remains at mechanical equilibrium. There are four primary pressures which are associated with the ventilation process, i.e., the intrapleural pressure, atmospheric pressure, transpulmonary pressure, and the intra-alveolar pressure.

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