Which structure provides the sensory root of the ciliary ganglion, carrying corneal sensation through to the ophthalmic division of the trigeminal nerve?

• A Short ciliary nerves from the eyeball
• B Branch from the maxillary division (V2)
• C Sympathetic root from the internal carotid plexus
• D Branch from the nasociliary nerve (V1) ✓

Explanation

The ciliary ganglion receives three roots: a parasympathetic root from the branch of CN III to the inferior oblique, a sympathetic root from the internal carotid plexus, and a sensory root from the nasociliary nerve, a branch of V1. Sensory fibres from the cornea, iris and ciliary body pass through the ganglion without synapsing and reach the ophthalmic division. The short ciliary nerves carry these fibres onward to the globe but are not the incoming root.

Reference: Gray's Anatomy for Students, 4th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.