Respiratory system
This notes aHere’s a short, simple paragraph: When you breathe normally, you take in about 500 mL of air, but during a deep breath you can inhale around 3000 mL more. As the lungs stretch during deep inspiration, a safety reflex called the Hering–Breuer reflex turns on. This reflex tells the brain’s DRG to stop the inhalation so the lungs don’t over-expand. Once the inhalation stops, the air naturally flows out again as the lungs relax.
Written for
- Institution
- Beirut Arab University
- Course
- Dent
Document information
- Uploaded on
- November 23, 2025
- Number of pages
- 16
- Written in
- 2025/2026
- Type
- Class notes
- Professor(s)
- Sabine
- Contains
- All classes
Subjects
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respiratory
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deep respiration
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quiet respiration
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inhalation
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exhalation
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drg
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vrg
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hering breuer
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lungs function
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physiology