BMS 107 Olfaction

Question 0

Inside the nasal cavity is what type of epithelium?

Answer 0

Olfactory epithelium

Question 1

What is olfaction?

Answer 1

Sense of smell

Question 2

What are the three distinct cell types are contained in the olfatory epithelium?

Answer 2

1. Olfactory receptor cells (bipolar cells; chemoreceptors)
2. Supporting cells (just like in taste buds)
3. Basal cells (stem cells)

Question 3

What cranial nerve conducts olfactory information?

Answer 3

CN I

Question 4

Where do olfactory glands originate?

Answer 4

The lamina propria

Question 5

What is the lamina propria made of?

Answer 5

areolar CT

Question 6

What is the function of the olfactory glands?

Answer 6

To extend the surface of the epithelium and secrete mucin to help dissolved chemicals reach receptors.

Question 7

Olfactory receptors are specialized _________.

Answer 7

chemoreceptors

Question 8

What are the structures that project from the apical end through the mucous covering the olfactory epithelium?

Answer 8

Olfactory hairs

Question 9

What is the olfactory pathway to the CNS?

Answer 9

Receptor cells > olfactory bulbs > olfactory tracts > temporal lobe

*does NOT pass through the thalamus