1. Tardigrade
  2. Question
  3. Biology
  4. Which of the following sequences is correct to initiate inspiration? (I). The contraction of external intercostal muscles raises the ribs and sternum (II). Volume of thorax increases in the dorso-ventral axis (III). Intrapulmonary pressure decreases (IV). Diaphragm contraction (V). Air rushes into Iungs (VI). Volume of thorax increases in the anterio-posterior axis

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Q. Which of the following sequences is correct to initiate inspiration?
(I). The contraction of external intercostal muscles raises the ribs and sternum
(II). Volume of thorax increases in the dorso-ventral axis
(III). Intrapulmonary pressure decreases
(IV). Diaphragm contraction
(V). Air rushes into Iungs
(VI). Volume of thorax increases in the anterio-posterior axis

Breathing and Exchange of Gases

Solution:

Correct answer is (c) $I, II, IV, VI, III, V$