Label & Describe the Nerve
Functions
CRANIAL NERVES NOTES 1-4
I. Olfactory Sensory from olfactory
receptors in nasal cavity
Smell tests
II. Optic Thru optic canal into orbit
Sensory from retina of eye Tests of vision
III. Oculomotor Motor (mixed) to external eye
muscle
adjustment and focusing of lens
Patient asked to track a finger, check papillary reflexes
IV. Trochlear Patient asked to track a finger down and
laterally
CRANIAL NERVES 5- 7
V. Trigeminal Mixed – sensory from face,
mouth, teeth
Motor to muscles of mastication
Clench jaw, use cotton swab to lightly touch
face for sensation
VI. Abducens Mixed to external eye muscle Track finger
movement laterally
VII. Facial Mixed to facial muscles,
Autonomic to glands of face including
salivary glands
Patient asked to use muscles of facial
expression, taste test
CRANIAL NERVES 8-12
VIII. Vestibulocochlear Sensory from hearing and
balance receptors TEST: Check hearing and balance
XI. Glossopharyngeal Mixed –motor to salivary gland, somatic motor
to pharynx TEST Check gag reflex
X. Vagus - major parasympathetic nerve to thoracic and abdominal
viscera controlling “rest and repose” response TEST: Check swallowing
reflex
XI. Accessory Mixed – mostly motor to muscles of neck and scalp
Turn head against resistance or shrug-STERNOCLEIDOMASTOID
XII. Hypoglossal Mixed – mostly motor to muscles of tongue for
speech, swallowing
Patient tongue thrust should be straight
Label & Describe the Nerve
Functions
DISTINGUISH DIFFERENT TYPES OF NERVES
(SENSORY, MOTOR OR BOTH)
SOME
SAY
MARRY
MONEY
BUT
MY
BROTHER
SAYS
BIG
BRAINS
MATTER
MOST
CRANIAL NERVE
MEMORY
(MNEUMONIC)
NERVE TYPE
1.OLFACTORY
SOME
SENSORY
2. OPTIC
SAY
SENSORY
3.OCULOMOTOR
MARRY
MOTOR
4. TROCHLEAR
MONEY
MOTOR
5. TRIGEMINAL
BUT
BOTH
6. ABDUCENS
MY
MOTOR
7. FACIAL
BROTHER
BOTH
8. VESTIBULO-COCHLEAR
SAYS
SENSORY
9.GLOSSO
PHARYNGEAL
BIG
BOTH
10. VAGUS
BRAINS
BOTH
11. ACCESSORY
MATTER
MOTOR
12.HYPOGLOSSAL
MOST
MOTOR
Label & Describe the Nerve
Functions
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