EMBRYOLOGY
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When the diapragm relaxes and moves back up, the lungs are ____
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expanding with air
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shrinking-pushing air out
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The diaphragm is the main muscle for breathing. This dome-shaped wall of muscle does most of the breathing work by expanding and contracting the chest to draw air in and out of your lungs. When the diaphragm contracts, air is pulled into your airway through your nose or mouth.
Detailed explanation-2: -When you breathe out, your diaphragm relaxes and curves back up as your lungs push the air out. Several nerves, soft tissues and blood vessels pass through the diaphragm.
There is 1 question to complete.