Zoology - Breathing and Exchange of Gases Question with Solution | TestHub
ZoologyBreathing and Exchange of GasesHuman Respiratory SystemEasy2 minPYQ_2009
ZoologyEasysingle choice
During inspiration, the diaphragm
Options:
Answer:
C
Solution:
During inspiration, the diaphragm contracts and flattens to increase the volume of the the thoracic cavity. This increase in volume leads to a decrease in intra-alveolar pressure, which is a pressure lower than atmospheric pressure and creates the pressure gradient. Due to the gradient the air is from the atmosphere is forced inside the lungs through nasal cavity. So, the correct answer is 'Contracts and flattens'.
Stream:JIPMERSubject:ZoologyTopic:Breathing and Exchange of GasesSubtopic:Human Respiratory System
⏱ 2mℹ️ Source: PYQ_2009
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