Cranial Nerve Name
What is the Optic Nerve?
Originates on the retina
What is CN II, Optic
What is CN II, optic?
CN test for CN II
What is visual acuity or visual field?
These cranial nerves are often tested together to determine lesions impacting vision.
CN II, III, IV, and VI
Cranial Nerve IV
What is trochlear nerve?
Originates on the epithelium (roof of nasal cavity)
Sensory input on posterior aspect of tongue and motor movement for swallowing
What is CN IX, glossopharyngeal?
CN test for CN I
What is occlude vision, present different scents (coffee beans, alcohol, etc.), test one nostril at a time?
This cranial nerve innervates the trapezius and SCM muscles.
What is accessory nerve, CN XI?
Cranial Nerve VII
What is the facial nerve?
The two cranial nerves that originate in the midbrain
What is CN III and CN IV
Extraocular eye movements, downward and lateral.
What is CNIV, Trochlear?
What is 1. sensory: taste on anterior tongue and 2. motor: make different facial expressions?
The cranial nerves involved in oral motor functioning
What is CN V, VII, IX, X, XII?
Cranial Nerve IX
What is glossopharyngeal nerve?
The 3 cranial nerves that originate in the pons (excluding CN VIII which originates in the pons-medulla junction)
What is CN V, VI, and VII)?
Sensory input: Innervates taste receptors on anterior tongue; Motor input: Muscles of face expression, eyelid closing, stapedius muscle
What is CN VII, facial?
Test for CN IX
What is Sensory: taste on posterior aspect of tongue and Motor: gag reflex?
The gag reflex is associated with these two cranial nerves
What is CN IX, and X?
Cranial Nerve XI
What is accessory nerve?
The 4 cranial nerves that originate in the medulla (excluding CN VIII which originates in the pons-medulla junction)
What is CN IX, X, XI, and XII?
Sensory: Sensation of face, head, cornea of eye, inner oral cavity including pain, temperature, and discriminative touch; Motor: Innervates muscles of mastication (masseter, temporalis, medial and later pterygoids)
What is CN V, Trigeminal?
Test for CN VIII
What is auditory branch: rub fingers together next to ears, vision occluded and vestibular branch: nystagmus test, balance tests, extensor tone
Demonstrate testing for CN XII.
What is...
- Ask patient to protrude tongue
- Note whether tongue deviates to one side
- move tongue
- check for tremors