of the following actions does NOT occur ____?
A: Air moves into the lung
B: The intrapleural pressure increases
C: The diaphragm moves inferiorly
D: The intrapulmonary pressure decreases
举一反三
- In order to inhale, the size of the thoracic cavity has to increase in order to decrease the internal pressure (compared to atmospheric pressure). In order to accomplish this task, which of the following must occur? A: the diaphragm muscle relaxes and the external intercostals contract B: the diaphragm muscle contracts and the external intercostals relax C: the diaphragm muscle and external intercostals contract D: the diaphragm muscle and external intercostals relax
- Which of the following muscles contract(s) during quiet expiration A: Diaphragm B: Internal intercostals C: External intercostals D: None of the above E: All of the above
- The direct motivation for lung ventilation comes from A: lung contraction B: elastic retraction of the lungs C: relief and contraction of respiratory muscles D: intrapulmonary pressure and atmosphere pressure difference
- Which of the following muscles contract when the mandible moves<br/>backward? A: the anterior temporalis B: the medial and posterior temporalis C: the medial pterygoid D: the masseter E: the lateral pterygoid
- 【单选题】Which of the following is true during inspiration? A. Intrapleural pressure is more negative than it is during expiration B. Alveolar pressure is higher than atmospheric pressure C. Intrapleural
内容
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The muscles taking<br/>part in normal inspiration include A: diaphragm and intercostales<br/>externi. B: diaphragm and intercostales interni. C: intercostales externi and intercostales<br/>interni. D: diaphragm and pectoralis<br/>major.
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With the increase of pressure altitude, . A: thrust increases, drag increases, thrust minus drag increases B: thrust decreases, drag decreases, thrust minus drag increases C: thrust decreases, drag decreases, thrust minus drag decreases D: thrust decreases, drag decreases, thrust minus drag does not change
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Why does breathing become difficult for humans during a tornado A: The wind becomes fast and hot. B: Air pressure gets steadily lower. C: The black area moves closer. D: They are knocked to the groun
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Why does breathing become difficult for humans during a tornado A: The wind becomes fast and hot. B: Air pressure gets steadily lower. C: The black area moves closer. D: They are knocked to the ground.
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Which one belongs to muscles of head and neck? () A: trapezius B: sternocleidomastoid C: latissimus<br/>dorsi D: Pectoralis<br/>major E: Diaphragm