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Odor Receptors (ORs) are what class of receptor?
True or False: each olfactory sensory neuron expresses one odor receptor.
True or False: All human ORs are functional.
>Approximately 70% of our ORs aren't functional
ORs are mostly present on ________.
Since ORs are GPCRs, the concentration of ________ increases when activated.
True or false: each neuron expresses a single type of OR that responds to a single odorant.
>True that each neuron expresses a single type of OR
>Each OR can respond to multiple odorants
True or False: neurons expressing the same OR project to 1 or 2 glomeruli in the olfactory bulb
__________ cells send odorant signals to the cortex.
Individual odorants activate ________ but different glomeruli, forming temproal and spatial maps.
Each odorant _________ _________ many receptors, each combination causing a different smell perception.
A higher number of what leads to an organism having a better sense of smell, like that seen in a bloodhound compared to a human.
Functional odor receptor neurons
Olfactory dysfunction is a marker for what disease?
Why is olfaction highly linked to memory?
Because one of the targets of the olfactory bulb is the Hippocampus
True or False: Olfactory sensory neurons are able to regenerate and are replaced every couple of months.
>neurons that extend from the olfactory bulb are among the few that are able to regenerate.
Pheromones (do/do not) elicit a conscious perception of odor.
____________ socially relevant chemo-signals from members of the same species.
True or False: Humans do not express pheromones receptors.
>There are 5 pheromone receptors in humans, but as a species aren't greatly affected by those responses like other animals
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