Cranial Nerves
Using the brain
stem models, practice identifying the cranial nerves listed in your lab manual,
then check your answers using the labeled images.
Hints:
- You should expect to see both
the new and old-style models on the exam, so be familiar with both.
- You will need to know both the
Roman numeral (I-XII) as well as the name for each cranial nerve.
- You will also need to know the
functions of each cranial nerve. Fortunately, the names of most of these
give a hint as to their function (e.g. olfactory nerve = sense of smell).
- You will need to know the
functional classification of each cranial nerve as a sensory, motor or
mixed (both sensory and motor) nerve. (Note that motor nerves do carry proprioceptive sensory fibers, but do not carry any
other kinds of sensory information.)
- It is probably best to start
with the numbers, as you can more-or-less count down the brainstem (just
watch for where the sequence jumps around).
- When counting, it is important
to remember to start with II, since the first cranial nerve (Olfactory) is
not present on the brain stem!
- It is probably easiest to
memorize the names of the cranial nerves and classification in sequence.
Use of a mnemonic will help you learn these.
- As with all of the pages on
this site, it is best to practice using the unlabeled photos, and use the
labeled photos to check your answers.

New Brain Stem model
without labels
New Brain Stem model
with numbered nerves
New Brain Stem model
with named nerves
Old Brain Stem model
without labels
Old Brain Stem model
with numbered nerves
Old Brain Stem model
with named nerves
Return to:
Nervous system Page
BIO 135 Main Page