Which of the following events occurs last?
A)Contraction of the diaphragm and the intercostals
B)Movement of air into the lungs
C)Firing of the inspiratory neurons in the medulla
D)Firing of the phrenic and intercostal nerves

Question

Quizplus · Accepted Answer

Movement of air into the lungs occurs last in the process of inhalation. The firing of the inspiratory neurons in the medulla (C) and the firing of the phrenic and intercostal nerves (D) both occur before the contraction of the diaphragm and intercostals (A) which results in the movement of air into the lungs.

Which of the Following Events Occurs Last