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