During pulmonary function tests, a person is found to have approximately 500 mL of air that moves in and out of the lungs during normal quiet breathing. What is this known as?

Question

Quizplus · Accepted Answer

The 500 mL of air that moves in and out of the lungs during normal quiet breathing is known as tidal volume. A is incorrect because total lung capacity is the total amount of air the lungs can hold, which includes the tidal volume, but also includes other volumes such as residual volume. C is incorrect because minute volume is the total amount of air that moves in and out of the lungs in one minute, which is calculated by multiplying the tidal volume by the respiratory rate. D is incorrect because the vital capacity is the maximum amount of air a person can forcefully exhale after taking a deep breath, which is usually greater than the tidal volume.

During Pulmonary Function Tests, a Person Is Found to Have