C - Cranial Nerves Exam with Verified
Solutions.
Names of Cranial Nerves 1-6 - Correct answer I = Olfactory
II = Optic
III = Oculomotor
IV = Trochlear
V = Trigeminal
VI = Abducens
Names of Cranial Nerves 7-12 - Correct answer VII = Facial
VIII = Vestibulocochlear
IX = Glossopharyngeal
X = Vagus
XI = Spinal accessory
XII = Hypoglossal
Cranial Nerve Mnemonic - Correct answer Oh
Once
One
Takes
The
Anatomy
Final
Very
Good
Vacations
Are
Heavenly
Are Cranial Nerves PNS or CNS? - Correct answer PNS
Spinal Nerves Review - Correct answer Arise from spinal cord, Mixed nerves formed by
union of Ventral and Dorsal roots.
Exit via Intervertebral Foramina; once outside the vertebral column they split into
Ventral and Dorsal Rami.
Ventral Rami of Cervical, Upper Thoracic, and Lumbosacral regions form Plexuses.
Dorsal Rami do not form plexuses.
Cranial Nerves vs Spinal Nerves: Differences - Correct answer 1.) CN Not formed by
union of dorsal and ventral roots - Some CN's are mixed, some are not
2.) CN attach to brain, not spinal cord (except XI)
3.) CN exit the Cranial Cavity through various openings (Canals, Meatuses, Fissures,
Foramina)
, 4.) CN do not form plexuses
All Cranial Nerves attach to the Anterior (Ventral) Brain or Spinal Cord Except... -
Correct answer Trochlear Nerve (CN IV) which attaches to the Dorsal Side
Cranial Nerves Exiting Skull - Correct answer pic
Cranial Nerves vs Spinal Nerves: Similarities - Correct answer 1.) Like Spinal Nerves,
some CN *associated with Sensory Ganglia*
2.) Like Spinal Nerves, some CN *associated with Autonomic Ganglia*
3.) Like Spinal Nerves, some CN *carry Postganglionic sympathetic fibers to smooth
muscle and glands (in the head & neck)*
Sensory Ganglia of Cranial Nerves - Correct answer 5,7,8,9,10
*Trigeminal (V) = Trigeminal Ganglion
Facial (VII) = Geniculate Ganglion
Vestibulocochlear (VIII) = Cochlear Ganglion, Vestibular Ganglion
Glossopharyngeal (IX) = Superior and inferior ganglia of IX
Vagus (X) = Superior and inferior ganglia of X*
(Cap't Hook on a date with a Shark named "Genni", their Snowman waiter hands them
two Balloons and two Plate and Spoons)
Autonomic Ganglia: CN vs Spinal Nerves - Correct answer - Some Cranial nerves
associate with *Parasympathetic ganglia*
- Spinal nerves associate with *Sympathetic ganglia* (S goes with S)
Where are the Cell Bodies of Cranial Nerves that carry Postganglionic Sympathetic
fibers to smooth muscle and glands (in the head & neck)? - Correct answer Cell bodies
of neurons are in *Superior Cervical Ganglion*
- The pathway to target organs is different compared to that for spinal nerves
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