Introduction The vestibulocochlear nerve is also called cranial nerve eight (CN VIII). The vestibulocochlear nerve (CN VIII) connects the vestibular and cochlear nerves. It is situated within the internal auditory…
A Cranial Nerve Disorder is a dysfunction of one of the twelve cranial nerves, which originate at the base of the brain, travel via openings in the skull, and supply…
Introduction The abducens nerve, also known as the abducent nerve, controls the movement of the lateral rectus muscle, allowing your eye to rotate away from the centre of your body…
Introduction The trigeminal nerve (CN V) is its fifth and largest cranial nerve. Its primary function is to provide sensory innervation to the face, which is divided into three major…
Introduction The trochlear nerve, or fourth cranial nerve (CN IV), acts as one of the ocular motor nerves that regulate eye movement. As the only cranial nerve with a dorsal…
Introduction The oculomotor nerve is the third cranial nerve (CN III), and its name indicates its function. The oculomotor nerve will innervate muscles that move the eye or its components,…
Introduction The optic nerve is the second cranial nerve (CN II) that transmits visual information. The optic nerve has only afferent (sensory) fibres and, like all cranial nerves, is paired.…
Introduction The first and smallest cranial nerve is the olfactory nerve. This nerve is one of two that do not connect to the brainstem. Your olfactory nerve anatomy is part…