Neurology Lab 6 - Module 3 - Orbit - Blood and Nerve Supply: Page 4 of 5

Nervous suppy

The nervous supply to the orbit is not only motor. This nervous supply does control other sensory and secretomotor functions.

The sensory nerve supply to the lacrimal gland is via ophthalmic branch of V1.

The parasympathetic control occurs through two ganglion:

The lacrimal gland receives it's parasymathetic conrol via the pterygopalatin ganlion. This is secretomotor innervation via the post-gangionic neurons in the pterygopalatine ganglion . The pre-ganglionic parasympathetic nerons of the facial nerve (VII) via the greater petrosal nerve deliver the innervation to the pterygopalatine ganglion.

The ciliary muscle of the eye and the sphincter pupillae muscle receive their control via the ciliary ganglion.