The route of major parasympathetic outflow from the head is via the ________.
A) sacral nerves
B) sympathetic trunk
C) vagus (X) nerves
D) phrenic nerve

Question

Quizplus · Accepted Answer

The vagus (X) nerves are responsible for carrying the majority of parasympathetic outflow from the head to various organs in the thoracic and abdominal cavities. The sacral nerves are responsible for carrying parasympathetic outflow to the pelvic organs, and the sympathetic trunk carries sympathetic outflow to various organs throughout the body. The phrenic nerve is responsible for controlling the diaphragm during breathing and is not directly involved in parasympathetic outflow.

The Route of Major Parasympathetic Outflow from the Head Is