Vernier Software and Technology
Vernier Software & Technology

Lung Volumes and Capacities

Figure from experiment 19 from Human Physiology with Vernier

Introduction

Measurement of lung volumes provides a tool for understanding normal function of the lungs as well as disease states. The breathing cycle is initiated by expansion of the chest. Contraction of the diaphragm causes it to flatten downward. If chest muscles are used, the ribs expand outward. The resulting increase in chest volume creates a negative pressure that draws air in through the nose and mouth. Normal exhalation is passive, resulting from “recoil” of the chest wall, diaphragm, and lung tissue.

In this experiment, you will measure lung volumes during normal breathing and with maximum effort. You will correlate lung volumes with a variety of clinical scenarios.

Objectives

In this experiment, you will

  • Obtain graphical representation of lung capacities and volumes.
  • Compare lung volumes between males and females.
  • Correlate lung volumes with clinical conditions.

Sensors and Equipment

This experiment features the following Vernier sensors and equipment.

Additional Requirements

You may also need an interface and software for data collection. What do I need for data collection?

Standards Correlations

See all standards correlations for Human Physiology with Vernier »

Experiment 19 from Human Physiology with Vernier Lab Book

<i>Human Physiology with Vernier</i> book cover

Included in the Lab Book

Vernier lab books include word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.

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