Cranial Nerves (match name & # to function)

CN VI- ABDUCENS

Motor- Abducts eye (Lateral Rectus muscle)

CN 1- OLFACTORY

Sensory nerve-smell. Stroke in this region may cause a loss of smell.

CN VIII- VESTIBULOCOCHLEAR

Sensory-Auditory, 2 separate branches from middle ear to temporal nerve: auditory cortex.

CN X- VAGUS

mixed- Sensory from Pharynx, larnyx, viscera. Chemo and Baroreceptors of heart and arteries (BP, CO2, pH, O2). Motor to pharynx, larynx for speech. Parasymp. to thoracic and abdominal viscera. Portions can be damaged, however stroke affecting entire nerve = death

CN XII- HYPOGLOSSAL

motor to tongue throat-for speech and swallowing. Damage would result in difficulty speaking and swallowing.

CN III-OCCULOMOTOR

Mixed & Parasympathetic- Motor to 3 Rectus eye muscles, inf. oblique for tracking, and to lid. Parasympathetic to iris, for constriction.

CN V- TRIGEMINAL

Mixed- Sensory from eye area, maxilla, mandible. Motor for chewing. (Has 3 Branches). THis nerve is associated with trigeminal neuralgia (suicide disease).

CN XI- SPINAL ACCESSORY

Motor to sternocleidomastoid, trapezius, pharynx, larynx, palate. For coordination, proprioception, swallowing. Damage would result in loss of ability to rotate head.

CN IV- THROCHLEAR

Motor- Superior Oblique eye muscles, pull top of eye in toward nose.

CN IX- GLOSSOPHARYNGEAL

Mixed- Sensory from pharynx, back of tongue (taste), plus from carotid and aortic receptors (monitors BP, O2, CO2, pH) to medulla. Motor to pharynx, larynx: swallowing, gaging. Parasymp. to parotic salivary glands, increases flow of saliva.

CN II- OPTIC

Sensory-from retina. Stroke can result in blindness on affected side

CN VII- FACIAL

Sensory/Motor- Sensory from fist 2/3 tongue, parasymp. to salivary glands + tear glands. Motor to face: expression.