The regulation of the activity of the breathing muscles, the diaphragm and external intercostals, is controlled by nerve impulses transmitted from the brain via the ________ and ________ nerves.
A) splanchic; sacral
B) trochlear; trigeminal
C) phrenic; intercostal
D) cranial; spinal

Question

Quizplus · Accepted Answer

The diaphragm and external intercostal muscles are innervated by the phrenic and intercostal nerves, respectively. These nerves transmit nerve impulses from the brain to the respiratory muscles, controlling their activity and regulating the breathing process.

The Regulation of the Activity of the Breathing Muscles, the Diaphragm