Electrophysiological recordings are made to determine the activity of respiratory motor neurons from a patient's medulla.The recordings show that the respiratory motor neurons from the dorsal medulla are functioning normally, but those from the ventral medulla have lower than normal activity.Which is the patient's most likely symptom?

Question

Quizplus · Accepted Answer

The dorsal respiratory group (DRG) primarily controls the diaphragm via the phrenic nerve, and normal functioning of neurons in the dorsal medulla suggests normal diaphragm function. The ventral respiratory group (VRG) controls muscles for forceful breathing, so lower activity in the ventral medulla would impair the ability to breathe deeply, affecting intense physical exercise.

Electrophysiological Recordings Are Made to Determine the Activity of Respiratory