Stephens - L5

Question 1

Middle cervical ganglion fibers go where?

Answer 1

Vertebral a, middle cervical nn

Question 2

Where do Verebral Ganglion fiebers go to?

Answer 2

Vertebral plexus and 6th cervical n, ansa subclavia comes from here

Question 3

Cervico-thoracic/Stellate ganglion is located where? Where does it get its fibers? Where do its fibers go?

Answer 3

C7-T1
Fibers are acquired from T1
Fibers go to heart, vertebral plexus, subclavian pelxus

Question 4

What is Horner’s syndrome?

Answer 4

Interruption in cervical symp trunk from previous neck trauma
Transection above T1 = unilateral sx
Hemisection of SC (Brown-Sequard syndrome)
Poorly done thyroidectomy damaging cervical chain ganglia
Sx: Ptosis of upper eyelid d/t tarsal m paralysis, Anhidrosis and blushing (vasodilation) d/t loss of symp inn, Papillary constrictuion d/t dilator papillae m paralysis

Question 5

Where does the internal carotid n come from? What does it go on to form? What are the branches of this formation?

Answer 5

Superior Cervical ganglia
Internal carotid plexus
1. Perivascular plexus: follows BVs, fibers named according to corresponding a
2. Symp n to ciliary ganglion: terminates to eye, innervates eye mm
3. Deep petrosal n: joins greater petrosal to form VIDIAN N which innervates palate, nasal cavity, pharynx, orbit, lacrimal gland
4. Carotico-tympanic n: enters middle ear cavity, forms typanic plexuses, exits plexus as lesser petrosal n, parotid gland