NEET 2020

NEET 2020 Zoology question on Breathing and Exchange of Gases

Select the correct events that occur during inspiration.
(a) Contraction of diaphragm
(b) Contraction of external inter-costal muscles
(c) Pulmonary volume decreases
(d) Intra pulmonary pressure increases
  1. A.
    (c) and (d)
  2. B.
    (a), (b) and (d)
  3. C.
    Only (d)
  4. D.
    (a) and (b)
Show answer

Correct option: D

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