Order the steps required for forced inspiration. Question 4 options: 1. Diaphragm contracts, inspiratory muscles contract 2. DRG is active, inspiratory center of VRG is active 3. Thoracic cavity volume increases greatly, pressure decreases greatly 4. Large amount of air moves into lungs
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Step 1: DRG is active, inspiratory center of VRG is active Show more…
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Place the events of inhalation and exhalation in order Beginning of inhalation End of exhalation Answer Bank The inspiratory muscles relax The inspiratory muscles contract The intrapulmonary pressure increases_ Air flows out of the lungs_ The thoracic volume decreases. The thoracic volume increases_ The intrapulmonary pressure decreases Air flows into the lungs:
Sri K.
When the diaphragm and external intercostal muscles contract, which of the following actions does NOT occur? Air moves into lungs The diaphragm moves inferiorly The intrapulmonary pressure decreases The intrapleural pressure increases
Bryan V.
4. Explain the forces that draw air into your lungs when you inhale, and force air out of your lungs when you exhale. What is the role of the diaphragm and intercostal muscles in this process? (1 point) 5. In what situations might breathing be automatic, where is this controlled? When are times when breathing is consciously controlled and from where? (1 point) 6. Describe the different volumes of air in the lungs. Why do our lungs maintain a residual volume of air? (1 point)
Adi S.
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