Cranial Nerves

Cranial Nerve I

Name: Olfactory Nerve

Sensory Function: Olfaction (smell)

Somatic (motor) Function: None

Parasympathetic (autonomic) Function: None

Cranial Nerve II

Name: Optic Nerve

Sensory Function: Vision

Somatic (motor) Function: None

Parasympathetic (autonomic) Function: None

Cranial Nerve III

Name: Oculomotor Nerve

Sensory Function: None

Somatic (motor) Function: 4 extrinsic eye muscles (IMS rectus, Inferior Oblique) and levator palpebrae (elevates eyelid)

Parasympathetic (autonomic) Function: Sphincter pupillae (constricts pupil) and ciliary muscles (rounds out the lens)

Cranial Nerve IV

Name: Trochlear Nerve

Sensory Function: None

Somatic (motor) Function: Superior oblique extrinsic eye muscle

Parasympathetic (autonomic) Function:

Cranial Nerve V

Name: Trigeminal Nerve

Sensory Function: General sensory to the anterior scalp, entire face, oral cavity, teeth, anterior 2/3 of tongue, part of the auricle of the ear, and meninges

Somatic (motor) Function: Chewing, mylohyoid, digastric (anterior belly), tensor tympani, tensor veli

Parasympathetic (autonomic) Function: None

Cranial Nerve VI

Name: Abducens Nerve

Sensory Function: None

Somatic (motor) Function: Lateral Rectus extrisic eye muscles

Parasympathetic (autonomic) Function: None

Cranial Nerve VII

Name: Facial Nerve

Sensory Function: Taste from the anterior 2/3rds of the tongue

Somatic (motor) Function: Muscles of facial expression, digastric (posterior belly), stylohyoid, stapedius

Parasympathetic (autonomic) Function: Increases secretion from the lacrimal gland of the eye (tears), the submandibular and sublingual salivary glands

Cranial Nerve VIII

Name: Vestibulocochlear Nerve

Sensory Function: Hearing (cochlear branch); equilibrium (vestibular branch)

Somatic (motor) Function: None

Parasympathetic (autonomic) Function: None

Cranial Nerve IX

Name: Glossopharyngea 1 Nerve

Sensory Function: General sensory and taste from posterior 1/3rd of the tongue, general sensory from part of the pharynx, visceral sensory from carotid bodies

Somatic (motor) Function: One pharyngeal muscle (stylopharyngeus)

Parasympathetic (autonomic) Function: Increases secretion from parotid salivary gland

Cranial Nerve X

Name: Vagus Nerve

Sensory Function: Visceral sensory info from the heart, lungs, most abdominal organs, general sensory info from the external acoustic meatus, tympanic membrane, part of the pharynx, laryngopharynx, and larynx

Somatic (motor) Function: Most pharyngeal muscles; all laryngeal muscles

Parasympathetic (autonomic) Function: Innervates smooth muscle and glands of the heart, lungs, larynx, trachea, and most abdominal organs

Cranial Nerve XI

Name: Accessory Nerve

Sensory Function: None

Somatic (motor) Function: Trapezius muscle, sternocleidomastoid muscle

Parasympathetic (autonomic) Function: None

Cranial Nerve XII

Name: Hypoglossal Nerve

Sensory Function: None

Somatic (motor) Function: Intrinsic and Extrinsic tongue muscles

Parasympathetic (autonomic) Function: