Cranial Nerves Flashcards
Name of CN I
Olfactory
Name of CN II
Optic
Name of CN III
Oculomotor
Name of CN IV
Trochlear
Name of CN V
Trigeminal
Name of CN VI
Abducens
Name of CN VII
Facial
Name of CN VIII
Vestibulocochlear
Name of CN IX
Glossopharyngeal
Name of CN X
Vagus
Name of CN XI
Spinal Accessory
Name of CN XII
Hypoglossal
Olfactory (CN #)
CN I
Optic (CN #)
CN II
Oculomotor (CN #)
CN III
Trochlear (CN #)
CN IV
Trigeminal (CN #)
CN V
Abducens (CN #)
CN VI
Facial (CN #)
CN VII
Vestibulocochlear (CN #)
CN VIII
Glossopharyngeal (CN #)
CN IX
Vagus (CN #)
CN X
Spinal Accessory (CN #)
CN XI
Hypoglossal (CN #)
CN XII
Sensory Function: smell
Name the nerve
Olfactory
Sensory Function: vision; afferents for pupillary and accommodation reflexes
(Name the nerve)
Optic
Motor Function: moves eye up, down, medially; raises upper eyelid; efferent for VOR
(Name the nerve)
Oculomotor
Parasympathetic Efferent Function: constricts pupil; adjusts the shape of the lens of the eye; efferent for pupillary and accommodation reflexes
(Name the nerve)
Oculomotor
Motor Function: moves eye medially and down; efferent for VOR
(Name the nerve)
Trochlear
Sensory Function: somatosensation from the face, TMJ; afferent for corneal reflex
(Name the nerve)
Trigeminal
Motor Function: chewing
Name the nerve
Trigeminal (V3)
Motor Function: abducts eye; efferent for VOR
Name the nerve
Abducens
Motor Function: facial expression, closes eye, protects hearing; efferent for corneal reflex
(Name the nerve)
Facial
Sensory Function: taste
Name the nerve
Facial
Parasympathetic Efferent Function: tears, salivation
Name the nerve
Facial
Sensory Function: senses head position relative to gravity and movement; afferent for VOR; hearing
(Name the nerve)
Vestibulocochlear
Sensory Function: sensation from pharynx, posterior tongue, middle ear; afferent for gag and swallowing reflexes
(Name the nerve)
Glossopharyngeal
Motor Function: constricts pharynx
Name the nerve
Glossopharyngeal
Visceral Afferent Function: taste; blood pressure and chemistry from carotid artery
(Name the nerve)
Glossopharyngeal
Parasympathetic Efferent Function: salivation
Name the nerve
Glossopharyngeal
Sensory Function: sensation from pharynx, larynx, skin in external ear canal
(Name the nerve)
Vagus
Motor Function: regulates swallowing and speech; efferent for gag and swallowing reflexes
(Name the nerve)
Vagus
Visceral Afferent Function: afferents from heart, lungs, trachea, bronchi, larynx, pharynx, GI system, liver, pancreas
(Name the nerve)
Vagus
Parasympathetic Efferent Function: regulates viscera
Name the nerve
Vagus
Motor Function: elevates shoulders, turns head
Name the nerve
Spinal Accessory
Motor Function: moves tongue
Name the nerve
Hypoglossal
Abnormal response: lack of blinking in response to touch of cornea
(Name the nerve involved)
Trigeminal (V1)
Afferent limb of the blink reflex
Abnormal response: deviation of jaw toward involved side when mouth is opened
(Name the nerve involved)
Trigeminal (V3)
Abnormal response: drooping of the face, inability to close the eye
(Name the nerve involved)
Facial
Abnormal response: conductive deafness (transmission of vibrations prevented in outer or middle ear)
(Name the nerve involved)
Deafness is due to peripheral problem that does not involve neural transmission
Abnormal response: sensorineural deafness
Name the nerve involved
Cochlear
Abnormal response: loss of gag reflex
Name the nerve involved
Glossopharyngeal (afferent limb), Vagus (efferent limb)
Abnormal response: asymmetric elevation of palate
Name the nerve involved
Glossopharyngeal (afferent), Vagus (efferent)
Abnormal response: tongue deviates to one side when protruded
(Name the nerve involved)
Hypoglossal