Lecture 2: Cranial Autonomics

Question 1

All sympathetic fibers are _______ arising from the _________ of the sympthatetic trunk.

In Regards to Autonomics in the Head

Answer 1

All sympathetic fibers are postganglionic arising from the superior cervical ganglion of the sympthatetic trunk.

Question 2

What cranial nerves carry preganglionic parasympathetic fibers?

Answer 2

CN III, VII, IX, X

Question 3

What 4 ganglia do the preganglionic parasympathetic fibers synapse onto?

Answer 3

Ciliary

Pterygopalatine

Otic

Submandibular

Question 4

What CN carries the parasympathetic fibers all over the head?

Answer 4

CN V

Question 5

Absence of what division of the autonomics is responsible for Horner Syndrome?

Answer 5

Sympathetic

On ipsilateral side of head

Question 6

What are the 3 main symptoms of Horner Syndrome?

Answer 6

• Ptosis: droopy eyelid
• Anhidrosis: No sweat
• Miosis: constricted pupil

(PAM Horner)

Question 7

What autonomic division carries only short ciliary nerves?

Answer 7

Parasympathetic

Question 8

The opening where Greater Petrosal N. and Deep Petrosal N. join is called what?

Answer 8

Foramen Lacerum

Question 9

What CNs exit through the superior orbital fissure?

Answer 9

CN III, IV, V1, VI

Question 10

What nerves of V1 carry PNS fibers?

Answer 10

Lacrimal N.

Short ciliary Ns.

Question 11

What nerves of V2 carry PNS fibers?

Answer 11

Zygomatic

Greater and lesser palatine

Posterior superior nasal

Question 12

What nerves of V3 carry PNS fibers?

Answer 12

Lingual N.

Auriculotemporal N.