Cranial Nerves (Ch 14) Flashcards
CN I
OLFACTORY (sensory)
Fxn: smell
CN II
OPTIC (sensory)
Fxn: vision/sight
CN III
OCULOMOTOR (motor) Fxn: - eyeball/upper eyelid mvmt - lens adjustment, near vision (accomodation) - pupil constriction
CN IV
TROCHLEAR (motor)
Functions: eyeball mvmt
CN V
TRIGEMINAL (both)
Sensory functions:
-touch/pain/thermal from scalp, face, and oral cavity
Motor functions:
- chewing
- middle ear muscle
CN VI
ABDUCENS (Motor)
Function: eyeball mvmt
CN VII
FACIAL (both)
Sensory fxns:
- taste
- touch/pain/thermal (ear canal)
Motor fxns:
- facial expression
- middle ear muscle
- tear/saliva secretion
CN VIII
VESTIBULOCOCHLEAR (sensory)
Function: hearing and balance (equilibrium)
CN IX
GLOSSOPHARYNGEAL (both)
Sensory fxns:
- taste (posterior tongue)
- swallowing muscles’ proprioception
Motor fxns:
- Monitor BP, O2/CO2 blood levels
- touch/pain/thermal (external ear and upper pharynx)
- assist swallowing
- secrete saliva
CN X
VAGUS (both)
Sensory fxns:
- taste (epiglottis)
- throat/voice box muscle proprioception
- thoracic/abdominal organs’ sensation
Motor fxns:
- Monitor BP, O2/CO2 blood levels
- touch/pain/thermal (external ear)
- swallow, speech, cough
- motility/secretion of digestive organs
- respiratory path constriction
- decrease HR
CN XI
ACCESSORY (motor)
Function: mvmt of head and pectoral girdle
CN XII
HYPOGLOSSAL (MOTOR)
Function: speech, food manipulation, swallowing
(CN Names Mnemonic) On On On They Travelled And Found Voldemort Guarding Very Ancient Horcruxes
Olfactory Optic Oculomotor Trochlear Trigeminal Abducens Facial Vestibulocochlear Glossopharyngeal Vagus Accessory Hypoglossal
(CN Types Mnemonic) Some Say Marry Money But My Brother Says Big Brains Matter More
CN I Olfactory (SENSORY) CN II Optic (SENSORY) CN III Oculomotor (MOTOR) CN IV Trochlear (MOTOR) CN V Trigeminal (BOTH) CN VI Abducens (MOTOR) CN VII Facial (BOTH) CN VIII Vestibulocochlear (SENSORY) CN IX Glossopharyngeal (BOTH) CN X Vagus (BOTH) CN XI Accessory (MOTOR) CN XII Hypoglossal (MOTOR)