Question

CNXI originates at the ______ enters

the skull at the ________ exists the skull at the _______.
a. Medulla, jugular foramen, foramen spinosum
b. Brain stem, jugular forame

Answer 1

CNXI, also known as the accessory nerve, originates in the upper part of the spinal cord, enters the skull through the jugular foramen, and exits the skull at the same location.

Step-by-step explanation:

The cranial nerve CNXI, also known as the accessory nerve, originates in the upper part of the spinal cord. It enters the skull through the jugular foramen and exits the skull at the same location.

The jugular foramen is located immediately inferior to the internal acoustic meatus.