CN I (Olfactory)

Question 1

Specialized sensory bipolar neurons are located where?

Answer 1

Olfactory Mucosa

Question 2

The olfactory mucosa is found where?

Answer 2

Roof of nasal cavity

Question 3

Axons from sensory bipolar neurons pass through what?

Answer 3

Cribriform plate of ethmoid bone

Question 4

Unlike other neurons, sensory bipolar neurons have the unique ability to do what after they are destroyed>

Answer 4

Regenerate

Question 5

The axons of these receptor cells synapse with what?

Answer 5

Mitral cells in olfactory bulb

Question 6

Most fibers from mitral cells pass backwards in what?

Answer 6

Olfactory tract

Question 7

The fibers from the axons end where?

Answer 7

Primary olfactory cortex in temporal lobe

Question 8

The olfactory cortex has connections with other parts of the brain including?

Answer 8

Hippocampus which links smell with memory

Question 9

The olfactory cortex is also linked with what?

Answer 9

Hypothalamus: links smell with ANS

Limbic System: links smell with emotions

Question 10

CN I is the only sensory cranial N that is NOT linked to what?

Answer 10

Thalamus before it’s fibers terminate in primary olfactory cortex in temporal cortex