The diaphragm is controlled by the ________ nerve.
A) vagus
B) olfactory
C) abducens
D) phrenic

Question

Quizplus · Accepted Answer

The phrenic nerve is responsible for controlling the diaphragm, which is the main muscle involved in breathing. It originates in the neck and runs down through the chest to the diaphragm, stimulating it to contract and relax. The other nerves listed (vagus, olfactory, abducens) have different functions in the body unrelated to breathing.

The Diaphragm Is Controlled by the ________ Nerve