Autonomic NS

Question 1

Where does hte symapthetic chain lie?

Answer 1

Neck of first rib near apex of lung

Passes superiorly posteromedial to carotid sheath

Question 2

Where do sympathetic fibres for the head and neck synapse?

Answer 2

Superior cervical ganglion

Question 3

Where do pregnalgionic sympathetic fibres for the head and neck exit spinal cod?

Answer 3

T1 nerve root - white rami - commiunicates with sympathetic chain

Question 4

What are the parasympathetic nuclei?

Answer 4

Edinger Westphal
Superior salivatory nucleus
Inferior salivatory nucleus

Question 5

Edinger Westphal pathway

Answer 5

Hitchikes with occulomotor nerve to ciliary ganglion and to sphincter pupillar and ciliary musclesvia short ciliary nerves

Question 6

Superior salivatory nucleus pathway

Answer 6

Travel in nervus intermedius of CNVII

Greater petrosal nerve to pterygopalatine ganglion to zygomatic branch of CNV2 to lacrimal gland, nasal, pharynx

Chorda tympani to submandibular ganglion to submandibular and sublingual gland

Question 7

Inferior salivatory nucleus

Answer 7

Glossopharyngeal CN IX
Parotid gland via lesser petrosal nerve and otic ganglion

Question 8

Dorsal motor nucleus

Answer 8

secretomotor nucleus of vagus nerve - GI tract

Question 9

Where does the ciliary ganglion lie

Answer 9

Apex of orbit lateral to optic nerve