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trin trin
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11 years ago
Exercise 7: Respiratory System Mechanics: Activity 1: Measuring Respiratory Volumes and Calculating Capacities Lab
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Pre-lab Quiz Results
You scored 100% by answering 5 out of 5 questions correctly.
1. Which of the following statements describing the mechanics of breathing is false?
You correctly answered: d. Ventilation relies exclusively on contracting skeletal muscles.
2. The contraction of which of the following muscles will increase the thoracic cavity volume during inspiration?
You correctly answered: c. the external intercostals
3. At the beginning of inspiration, the
You correctly answered: b. thoracic cavity volume increases.
4. At the beginning of expiration, the
You correctly answered: a. pressure in the thoracic cavity increases.
5. A tidal volume refers to the
You correctly answered: b. amount of air inspired and then expired with each breath under resting conditions.

Post-lab Quiz Results
You scored 100% by answering 5 out of 5 questions correctly.
1. To calculate a person's vital capacity, you need to know the TV, ERV, and
You correctly answered: c. IRV.
2. Measuring a person's FVC means that you are measuring
You correctly answered: d. the amount of air that can be expelled when the subject takes the deepest possible inspiration
and then forcefully expires as completely and rapidly as possible.
3. Measuring a person's FEV1 means that you are measuring
You correctly answered: b. the amount of the VC that is expired during the first second of the FVC test.
4. For a person suffering an asthma attack, inhaler medications are expected to
You correctly answered: a. reduce the airway resistance.
5. Which of the following values does not include the ERV?
You correctly answered: c. TV
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