Pacemaker activity that establishes the rhythmicity of breathing resides in the
A)lung tissue
B)respiratory muscles
C)dorsal respiratory group
D)phrenic nerve
E)cerebrum

Question

Quizplus · Accepted Answer

The dorsal respiratory group is responsible for generating the rhythmicity of breathing by acting as a pacemaker. The other choices, such as lung tissue, respiratory muscles, phrenic nerve, and cerebrum, contribute to the process of breathing but do not establish the rhythm.

Pacemaker Activity That Establishes the Rhythmicity of Breathing Resides in the