Smell (Olfaction)

Question 1

What is located in small areas of epithelium in the roof of the nasal cavity?

Answer 1

Olfactory receptors

Question 2

What has millions of bipolar olfactory sensory neurons with olfactory receptors and supporting and stem cells?

Answer 2

Olfactory epithelium

Question 3

what conveys sensory impulses directly to olfactory processing centers in temporal lobe, as well as limbic system?

Answer 3

Olfactory tracts

Question 4

what has
Stem Cells
-renew olfactory sensory neurons throughout life
Supporting cells
Olfactory glands
-secrete mucus to dissolve odorant molecules
Olfactory sensory neurons
-Bipolar
-Feature dendritic ends with antennae-like extensions (cilia) that increase receptive area
-feature chemoreceptors that bind odorant molecules
Axons form CN I and pass through cribriform plate

Answer 4

Olfactory epithelium

Question 5

the combination of receptors stimulated by a particular odorant determines the brains perception a particular “smell”

Answer 5

Odorants may bind multiple receptors