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Question

Breathing by ribs is more pronounced in
  1. Male
  2. Female
  3. Pregnant female
  4. None of the above

A
Pregnant female
B
None of the above
C
Male
D
Female
Solution
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During the third trimester, as the uterus continues to grow, it puts pressure on the internal organs and the diaphragm, which in turns restricts the amount of room available for lungs and leads to shortness of breath. So breathing by ribs is more pronounced during pregnancy, as it slightly raises the rib cage and temporarily gives more breathing space to lungs making breathing little easier.
Hence the correct option is C.

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