Parasympathetic NS

Question 1

CN that contribute to PSNS

Answer 1

CN III, XII, IX, X

Question 2

Part of spinal cord that contributes to PSNS

Answer 2

S1-S3

Question 3

Location of gaglia

Answer 3

near effector organ

Question 4

Branching?

Answer 4

Limited

Question 5

Pre and post length?

Answer 5

Pre longer than post

Question 6

Distribution to?

Answer 6

Just viscera

Question 7

Path of CN III

Answer 7

Pre gang axons leave orbital fissure, synapse in ciliary, post gang axons (shory ciliary n.) go to ciliary muscle and constrictor pupillae

Question 8

Path of CN VII- Chorda Tympani

Answer 8

Leave via petrotympanic fissure, and travel on lingual branch of CN V, pre gang fibers synapse in mandibular or sublingual ganglia. Post gang axons innervate same glands!

Question 9

Path of CN VII- Major Petrosal N

Answer 9

Leave tympanic fissure, synapse in pterygoid palatine ganglia. Post Ganglionic axons travel with lacrimal branch of ophthalmic branch and go to lacrimal gland. Other post ganglionic fibers go with maxilarry branches to nasal and palate glands

Question 10

Path of CN IX

Answer 10

Pre ganglionic axons leave skull via the auditory tube opening as the minor pretrosal n. and synpase at the otic ganglia (by the oval foramen). Post gang carried by auriculotemporal of mandibular to the parotid. Post gang also carried by buccal of mandibular to the zygomatic and buccal glands.

Question 11

Path of X

Answer 11

Pre ganglionic axons travel and synapse with PS ganglia located within wall of visceral organs.

Question 12

S1-S3

Answer 12

Pre gang synapse in either pelvic plexus or on or in target organ. Go to pelvic organs (genital, urinary, descending colon to rectum

Question 13

Name the 5 Parasympathetic ganglia of the head?

Answer 13

Otic, Ciliary, Pterygoid, Mandibular, sublingual