Chemosenses 2

Question 1

olfactory receptor neurons

Answer 1

Olfactory Transduction-results in an action potential in the olfactory cell itself

Question 2

adaptation

Answer 2

Decreased response despite continuous stimulus

Question 3

population coding

Answer 3

Each receptor ‘broadly tuned,’ but with preferences

Question 4

deciphering smells

Answer 4

Each glomerulus receives receptor axons from a large region of the olfactory epithelium.
Each glomerulus receives input from olfactory receptor neurons expressing only one type of receptor protein (only receptor cells of one type)
Begins to separate odor signals into broad categories before going to the brain.

Question 5

olfactory maps

Answer 5

each odor activates a different pattern of glomeruli making an odor spatial map on the olfactory bulb. Each olfactory bulb contains the same map.

Question 6

central olfactory pathways cont

Answer 6

Axons of the olfactory tract: Branch and enter the forebrain

Neocortex: Reached by a pathway that synapses in the medial dorsal nucleus