Essays on Cranial Nerve

Vestibular Projections

Vestibular projections in the central nervous system consist of vestibular end organs which communicate with the brain stem and the cerebellum via the vestibular branch of the eighth cranial nerve. These nerves are also connected to the auditory fibers. Thus damage caused to these structures can cause both vestibular and auditory disturbances. The vital function of the vestibular system is to coordinate head and eye movements. The ability of the eye to stay focused on an object even while the head is moving is brought about by the vestibular system.

Vestibular Cochlear Nerve

The vestibulo cochlear nerve or the auditory nerve is ...

INTRODUCTION

The 12 cranial nerves are olfactory nerve I, optic nerve II, oculomotor nerve III, trochlear nerve IV, trigeminal nerve V, abducens nerve VI, facial nerve VII, vestibulocochlear nerve VIII, glossopharyngeal nerve IX, vagus nerve X, spinal accessory nerve XI and hypoglossal nerve XII . Cranial nerves that transmit information from the brain to the eye are optic nerve, oculomotor nerve, trochlear nerve, trigeminal nerve, abducens nerve and facial nerve. The primary function of the cranial nerves in the eye is innervation of muscles in the eye, control of vision, controlling lateral and vertical movements of eyeball in the eye and ...

Cavernous Sinus is a large collection of thin walled veins creating a cavity bordered by sphenoid bone and the temporal bone of the skull (Andersson, Kahnberg, and Pogrel 555). It lies within the skull, found behind each orbit, and contains cranial nerve III, cranial nerve IV, ophthalmic and maxillary nerves. The core function of the Cavernous Sinus is to drain blood from the brain, back to the heart (Andersson, Kahnberg, and Pogrel 555). In light with this, Cavernous Sinus Thrombosis (CST) is a thrombophlebitis cavernous sinus, caused by the blockage of a large vein within the Cavernous Sinus due to the formation of a ...