ICSE BoardEnglish MediumSTD 9BIOLOGYRespiratory System2 Marks
Question
What effect does altitude have on breathing?
✓
Answer
the reduced oxygen content of the blood induces breathing instability, with periods of deep and rapid breathing alternating with central apnea. This breathing pattern is called high-altitude periodic breathing (PB). It occurs even in healthy persons at altitudes above 6000 ft.
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