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Portage Learning Anatomy & Physiology
II: Lab 7 Exam Questions and Answers |
Latest Version | 2025/2026 | Correct & Verified
What is the primary muscle responsible for inhalation?✔✔ Diaphragm
What structure connects the larynx to the bronchi?✔✔ Trachea
What small air sacs in the lungs are the site of gas exchange?✔✔ Alveoli
What substance reduces surface tension in the alveoli?✔✔ Surfactant
What is the outer membrane covering the lungs called?✔✔ Visceral pleura 1 / 3
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What is the space between the two pleural membranes called?✔✔ Pleural cavity
What gas moves from alveoli into the blood during external respiration?✔✔ Oxygen
What gas moves from blood into the alveoli during external respiration?✔✔ Carbon dioxide
What term describes the amount of air moved in and out of the lungs during normal breathing?✔✔ Tidal volume
What is the maximum volume of air that can be forcefully exhaled after normal exhalation?✔✔ Expiratory reserve volume
What is the maximum volume of air that can be inhaled after a normal inhalation?✔✔ Inspiratory reserve volume 2 / 3
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What is the total volume of air that the lungs can hold?✔✔ Total lung capacity
What remains in the lungs after maximal exhalation?✔✔ Residual volume
What is the sum of tidal volume, inspiratory reserve volume, and expiratory reserve volume?✔✔ Vital capacity
What term describes breathing that occurs at rest without conscious control?✔✔ Quiet breathing
What term describes breathing that involves conscious effort and additional muscles?✔✔ Forced breathing
What gas is primarily responsible for stimulating breathing rate?✔✔ Carbon dioxide
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