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Cranial Nerves - Anatomy & Physiology (view source)
Revision as of 01:27, 27 April 2016
, 01:27, 27 April 2016→Abducent nerve (VI)
===Abducent nerve (VI)===
===Abducent nerve (VI)===
The abducent nerve is part of the cranial nerve group responsible for innervation of the muscles of the head. The abducent nerve originates from the medulla oblongata and is a motor nerve. It is composed of '''general somatic efferent fibres''' which are responsible for controlling the 'lateral rectus' muscle and the 'restractor bulbi' muscle of the eye. The nerve passes through the '''orbital fissure''' and can be found within the same layer of the meninges as the opthalmic branch (V1) of the trigeminal nerve (V).
The abducent nerve is part of the cranial nerve group responsible for innervation of the muscles of the head. The abducent nerve originates from the medulla oblongata and is a motor nerve. It is composed of '''general somatic efferent fibres''' which are responsible for controlling the 'lateral rectus' muscle and the 'retractor bulbi' muscle of the eye. The nerve passes through the '''orbital fissure''' and can be found within the same layer of the meninges as the opthalmic branch (V1) of the trigeminal nerve (V).
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During a clinical examination, medial deviation stribismus may indicate a problem with this nerve.
During a clinical examination, medial deviation strabismus may indicate a problem with this nerve.
===Facial nerve (VII)===
===Facial nerve (VII)===