25. During exercise, Inspiration requires more force and extra labor is placed on the muscles of the Thorax. Which of the following statements is true regarding the mechanisms of "forced inspiration"? A. The diaphragm is able to triple the force of a normal contraction and subsequently increase thoracic volume by 50%. B. The external intercostal muscles contract and assist with the decrease in intrathoracic pressure. C. The internal intercostal muscles contract and assist with the decrease in intrathoracic pressure. D. Lung Elastic Recoil decreases (in response to circulating Epinephrine) and the load on the diaphragm is diminished.
25. During exercise, Inspiration requires more force and extra labor is placed on the muscles of the Thorax. Which of the following statements is true regarding the mechanisms of "forced inspiration"? A. The diaphragm is able to triple the force of a normal contraction and subsequently increase thoracic volume by 50%. B. The external intercostal muscles contract and assist with the decrease in intrathoracic pressure. C. The internal intercostal muscles contract and assist with the decrease in intrathoracic pressure. D. Lung Elastic Recoil decreases (in response to circulating Epinephrine) and the load on the diaphragm is diminished.
Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter39: The Respiratory System
Section: Chapter Questions
Problem 10RQ: How would paralysis of the diaphragm alter inspiration? It would prevent contraction of the...
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