CN XI Accessory

Question 1

CN XI Accessory - Two parts - Cranial root nucleus in?

Answer 1

Caudal portion of medulla

Question 2

CN XI Accessory - Two parts - Spinal root LMN somas in lateral aspect of the gray matter of?

Answer 2

C1-C5(6)

Question 3

CN XI Accessory - Spinal Root - Axons exit spinal cord laterally between the dorsal and ventral roots, travel superiorly up through the?

Answer 3

Foramen magnum into the skull, then exit the skull via the jugular foramen

Question 4

CN XI Accessory - Types of axons - Voluntary motor

Answer 4

Innervates trapezius

Innervates sternocleidomastoid