Craneal Nerves

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Craneal Nerves

VII Facial Nerve

Bulboprotuberancial groove at olive level

It is a mixed nerve, with mainly motor function and with a sensitive portion

Collect taste impressions of the previous two thirds of the language

VIII Auditory Nerve

Side angle of bulboprotuberancial groove

It is in charge of balance and auditory functions

IX Glossopharyngeal Nerve

Emerges from the posterior collateral groove of the medulla oblongata

Provides secret-motor innervation to the parotid gland and motor innervation to the stylopharyngeal muscle

Receive taste impulses from the posterior third of the tongue

X Vagus Nerve

Side groove of the bulb, between the olive bulbar and the inferior cerebellar peduncle

Receive the sense of taste from the epiglottis

Carries parasympathetic fibers to the abdominal viscera

Provides innervation to most laryngeal muscles

XI Spinal Nerve

It leaves the skull through the jugular hole along with the glossopharyngeal and the vagus.

Controls sternocleidomastoid muscles and trapezius

XII Hypoglossal Nerve

Preolivar groove

It is mainly responsible for coordinating language movements

VI Abducens Nerve

Bulboprotuberancial groove at the level of the pyramids

It innervates the lateral rectus muscle of the eyeball, being responsible for turning the eye outward

V Trigeminal Nerve

Anterolateral side of the bridge (lateral fossa)

It is a nerve with mixed function (motor and sensitive)

Mainly controls the chewing musculature and facial sensitivity

It has three main branches

Mandibular nerve

Maxillary nerve

Olfactory nerve

IV Pathetic Nerve

Posterior face of the mesencephalic inferior to the quadrilateral colicules

Innervates the upper oblique muscle of the eye

III Common eye motor nerve

This nerve emerges in the common ocular motor groove located on the inside of the brain peduncles.

It has motor and parasympathetic functions

Parasympathetic: Responsible for pupil size

Motor:It is one of the nerves that controls eye movement

II Optic Nerve

Optic chiasma: frontal lobe

Send the signals that the eye perceives to our brain

I Olfactory Nerve

Apparent Origin

Olfactory Bulb: lower face of the frontal lobe

Function

It is responsible for driving the olfactory impulses from the nose to the central nervous system.

Its function is sensitive