Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
If a person suffers punctures in his chest cavity in an accident, without any damage to the lungs, its effect could lead to
BiologyBreathing and Exchange of GasesNEET
Options:
  • A reduced breathing rate
  • B rapid increase in breathing rate
  • C no change in respiration
  • D cessation of breathing
Solution:
1029 Upvotes Verified Answer
The correct answer is: cessation of breathing
Inhalation and Exhalation is due to pressure gradient. This is difference in the pressure which causes air to flow. During inhalation negative pressure gradient and during exhalation positive pressure gradient is formed. Thus if a person suffers from punctures inside the chest cavity, the pressure gradients will not be formed and thus breathing will stop.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.