Ganglia

Question 1

Functional relation of ciliary ganglion

Answer 1

Functionally related to oculomotor nerve

Question 2

Topographic relation of ciliary ganglion

Answer 2

Nasociliary nerve

Question 3

State the roots of the ciliary ganglion and their preganglionic origins

Answer 3

Parasympathetic: by Nerve to inferior oblique from oculomotor inferior division which originates in the Edinger of Westphal nucleus
Sympathetic: by T1 spinal segment lateral horn
Sensory: by nasociliary nerve (they don’t synapse in any ganglion so there is no classification of preganglionic)

Question 4

Which fibers related to ciliary ganglion form a plexus around internal carotid artery?

Answer 4

The postganglionic fibers from cervical ganglion after preganglionic fibers from lateral horn of T1 spinal segment synapse at the superior cervical ganglion

Question 5

Ciliary ganglion is a relay station for

Answer 5

parasympathetic, sympathetic, and sensory fibers supplying sphincter pupillae and ciliary muscles

Question 6

Submandibular ganglion is topographically connected to

Answer 6

lingual nerve

Question 7

Which fibers related to submandibular ganglion form a plexus around the facial artery?

Answer 7

postganglionic fibers of sympathetic root from spinal segment T1 horn. they come from the superior cervical ganglion

Question 8

Name the arteries around which postganglionic fibers of 1. Ciliary ganglion 2. Submandibular ganglion 3. Otic ganglion, form a plexus

Answer 8

Ciliary ganglion - Around internal carotid artery

Submandibular ganglion - Around facial artery

Otic ganglion - Around middle meningeal artery