Olfaction

Question 1

What are 3 main types of cells in olfactory epithelium?

Answer 1

Basal cells
Olfactory receptor cells
Supporting cells

Question 2

What do basal cells do?

Answer 2

They are epithelial stem cells that will become new receptor cells.

Question 3

What do olfactory receptor cells do?

Answer 3

They are bipolar cells whose dendrites bind to odorants and unmyelinated axons to form nerve

Question 4

Function of piriform cortex?

Answer 4

Relay info to orbit frontal olfactory cortex (olfactory association cortex) and the dorsomedial thalamic nucleus.

Question 5

Where are piriform and entorhinal cortex located?

Answer 5

In anterior portion of parahippocampal gurus surrounding amygdala

Question 6

Where is primary gustatory cortex located?

Answer 6

In inferior portion of post central gyrus, operculum, and superior portion of insula

Question 7

What carries taste from anterior 2/3 of tongue?

Answer 7

Central axons from psuedounipolar cells of cranial nerves:
VII (genicular ganglion)

Question 8

What carries taste from posterior 1/3 of tongue?

Answer 8

Central axons from psuedouniipolar cells of cranial nerve IX (inferior ganglion)