Lung Capacity. Respiratory System Lung Capacity What is lung capacity? – Tidal Volume: the amount of air that is taken in or expelled during normal breathing.

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Presentation transcript:

Lung Capacity

Respiratory System

Lung Capacity What is lung capacity? – Tidal Volume: the amount of air that is taken in or expelled during normal breathing – Vital Capacity: the largest amount of air that can be exhaled after taking a deep breath How can lung capacity be measured? What are factors that increase lung capacity?

Spirometer

Balloon method

Balloon diameter v. Lung volume

Bubbles!

Calculating Volume

Possible Questions What is the difference when using balloons versus bubbles to measure lung capacity? Is there a difference in a person’s lung capacity before and after exercise? What is the difference between a person’s vital capacity and tidal volume? Is there a relationship between the height of a person on their lung capacity?