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

 1393  208 Breathing and Exchange of Gases Report Error

Solution:

Correct answer is (c)