CRANIAL NERVE I
olfactory nerve
sense of smell
sensory
VA
bipolar neurons
CRANIAL NERVE II
optic nerve
sense of vision
sensory
SA
bipolar neurons
CRANIAL NERVE III
oculomotor nerve
innervates superior rectus, inferior rectus, medial rectus, and inferior oblique
motor
SE and VE
multipolar neurons
CRANIAL NERVE IV
trochlear nerve
eye movement
innervates superior oblique
motor
SE
multipolar
CRANIAL NERVE V
trigeminal nerve
facial sensation, muscles of mastication
BOTH
SE and SA
multipolar and pseudo unipolar
CRANIAL NERVE VI
abducens nerve
innervates lateral rectus muscle, which abducts eye
motor
SE
multipolar
CRANIAL NERVE VII
facial nerve
facial expression, taste, secretions of salivary and lacrimal glands
BOTH
SE, VE, SA, VA
multipolar and pseudounipolar
CRANIAL NERVE VIII
vestibulocochlear nerve
hearing and equilibrium
sensory
SA
bipolar
CRANIAL NERVE IX
Glossopharyngeal Nerve
gag reflex, pharyngeal muscles
BOTH
SE, VE, SA, VA
multipolar and pseudounipolar
CRANIAL NERVE X
Vagus nerve
laryngeal muscles (voice), pharyngeal muscles (swallowing)
BOTH
SE, VE, SA, VA
multipolar and pseudounipolar
CRANIAL NERVE XI
spinal accessory nerve
head-turning
motor
SE
multipolar
CRANIAL NERVE XII
Hypoglossal nerve
tongue movement
motor
SE
multipolar
somatic efferent nerves
innervate skeletal muscle
CN 3, 4, 5, 6, 7, 9, 10, 11, 12
somatic afferent
sensations of vision, tactile and pain, hearing and equilibrium
CN 2, 5, 7, 8, 9, 10
visceral efferent
innervation of smooth muscle, cardiac muscle, and glands
CN 3, 7, 9, 10
visceral afferent
sensations from viscera including olfaction and taste
CN 1, 7, 9, 10
which cranial nerves have bipolar neurons?
CN I, II, VIII
which cranial nerves has pseudounipolar neurons?
CN V, VII, IX, X
lesion of oculomotor nerve (III)
eye deviation inferiorly and laterally (lateral strabismus)
eyelid droops (ptosis)
pupil dilates (mydriasis)
pupillary light reflex lost
Lesion of trochlear nerve (IV)
eye deviates superiorly and laterally
lesion of abducens nerve (VI)
eye deviates medially (medial strabismus)
lesion of spinal accessory nerve (XI)
difficulty shrugging ipsilateral shoulder
difficulty turning head in contralateral direction
lesion of hypoglossal nerve (XII)
tongue deviates ipsilaterally when protruded
slurred speech (dysarthria)
lesion of olfactory nerve (I)
loss of smell (anosmia)
lesion of optic nerve (II)
ipsilateral blindness (anopsia)
Lesion of vestibulocochlear nerve (VIII)
ipsilateral deafness
loss of equilibrium
lesion of trigeminal nerve (V)
ipsilateral loss of tactile and pain for forehead and midface (V1 and V2)
jaw deviates ipsilaterally when opened (V3)
ipsilateral loss of tactile and pain for lower face (including anterior 2/3 tongue)
lesion of facial nerve (VII)
ipsilateral paralysis of muscles of facial expression (Bell's palsy)
ipsilateral loss of lacrimation and salivation
ipsilateral loss of taste from anterior 2/3 of tongue
lesion of glossopharyngeal nerve (IX)
ipsilateral loss of taste from posterior 1/3 of tongue
loss of gag reflex (sensory limb)
lesion of vagus nerve (X)
uvula deviates contralaterally
loss of gag reflex (motor limb)
dysarthria