Olfactory & optic nerve

Question 1

type of neurons in the olfactory nerve, and where?

Answer 1

• primary bipolar sensory neurons

- olfactory mucousa

Question 2

where do it’s axons pass

Answer 2

axon bundle passes from

• nasal cavity through
• cribriform plate in to
• anterior cranial fossa to
• synapse in the olfactory bulb
• this was from the 1st order neurons

Question 3

where do 2nd order neurons start

Answer 3

from olfactory tract to medial & lateral olfactory stria

ending in cerebral cortex of prepiriform area, amygdala, etc

Question 4

where does the optic tract terminate

Answer 4

in the lateral geniculate body (visual pathway)

*** remember that the medial geniculate body is for the auditory pathway!!

Question 5

pathway of the optic nerve

Answer 5

• optic nerve extends through the optic canal

- from optic canal to the orbit exiting the posterior side of the eyeball