I Olfactory

Question 1

Where do the olfactory nerves originate?

Answer 1

Olfactory mucosa of upper portion of nasal cavity

Question 2

Where do processes of olfactory nerves synapse?

Answer 2

Olfactory bulb

Question 3

Where does the lateral olfactory stria project to?

Answer 3

Primary olfactory cortex

Question 4

How is the primary olfactory cortex defined?

Answer 4

Piriform cortex, parts of amygdala, and part of entorhinal cortex, all located on the anterior portion of the parahippocampal gyrus (next to uncus)

Question 5

medial olfactory stria sends fibers via the ____ to the ____

Answer 5

Anterior commissure
Contralateral olfactory bulb

Question 6

Why is olfaction the fastest sense?

Answer 6

Only sense, special or general, that reaches the cortex directly, not via the thalamus (2-cell pathway)

Question 7

How are olfactory nerves examined?

Answer 7

Odorants applied to each nostril with eyes closed

Question 8

Lesion of olfactory nerve

Answer 8

Anosmia