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Respiratory Volumes Lab Report

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BIOS255 Week 6 Lab: #8 Respiratory Volumes LABORATORY REPORT

Activity 8: Respiratory Volumes
Name:
Instructor:
Date:

PREDICTIONS

1. During exercise: TV will increase

2. During exercise: IRV will increase

3. During exercise: ERV will decrease

4. During exercise: VC will increase

5. During exercise: TLC will not change

MATERIALS AND METHODS

1. Dependent Variable: Respiratory volumes

2. Independent Variable: Level of physical activity (resting or exercising)

3. Controlled Variables: Height, sex, age

4. Which respiratory volume was calculated? undefined


5. What was the purpose of the nose clip? To make sure she is only breathing in and out of her mouth

RESULTS

See Table 2: Average Breathing Rates and Lung Volumes
See Graph: Comparison of Resting and Exercising Lung Volumes and Breathing Rate

1. Did the breathing rate increase, decrease, or not change with exercise? Increase

2. Did the tidal volume increase, decrease, or not change with exercise?   Increase

3. Did the expiratory reserve volume increase, decrease, or not change with exercise?   Decrease

4. Did the inspiratory reserve volume increase, decrease, or not change with exercise? Decrease

5. Did the inspiratory capacity increase, decrease, or not change with exercise? No change

6. Did the functional residual capacity increase, decrease, or not change with exercise? Decrease

7. Did the minute ventilation increase, decrease, or not change with exercise? Increase

See Table 3: Lung Capacities and Minute Ventilation
See Graph: Comparison of Resting and Exercising Lung Capacities and Minute Ventilation

DISCUSSION

1. Explain the change in ERV with exercise.   Tidal Volume increases with exercise, which decreases the ERV

2. Explain the change in IRV with exercise. This is the amount of air that can be forcibly inhaled after a normal inhale. It increases during exercise by increasing the volume of air that can pass.

3. Explain the...

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