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During which phase of respiration does the diaphragm relax? (2023)
During which phase of respiration does the diaphragm relax? (2023)
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Practice Questions
1 question
Q1
During which phase of respiration does the diaphragm relax? (2023)
Inhalation
Exhalation
Gas exchange
Oxygen transport
Show Solution
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During exhalation, the diaphragm relaxes, causing the thoracic cavity to decrease in volume and air to be expelled from the lungs.
Questions & Step-by-step Solutions
1 item
Q
Q: During which phase of respiration does the diaphragm relax? (2023)
Solution:
During exhalation, the diaphragm relaxes, causing the thoracic cavity to decrease in volume and air to be expelled from the lungs.
Steps: 5
Show Steps
Step 1: Understand that respiration has two main phases: inhalation and exhalation.
Step 2: Know that during inhalation, the diaphragm contracts and moves downwards, allowing air to enter the lungs.
Step 3: Recognize that during exhalation, the diaphragm relaxes and moves back up.
Step 4: Realize that when the diaphragm relaxes, the volume of the thoracic cavity decreases.
Step 5: Understand that this decrease in volume pushes air out of the lungs, completing the exhalation process.
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