chemical senses

olfaction

scientific term for smell

nasal cavity

where are the olfactory organs?

oderants

What binds to olfactory receptors?

drain secretions directly to the surface via short ducts 

What is the importance of olfactory gland secretions? Can we "smell" without these secretions?

scents go to the olfactory bulbs which is connected to the amygdala and hippocampus which are where your memories are stored

What is special about the route olfactory sensation information takes into the CNS? Why do certain scents sometimes trigger recall of memories?

olfactory nerve (I)

What cranial nerve is important in sense of smell?

taste from a distance

smell is….

80

____% of taste perception is smell

taste buds

where are our gustatory receptors?

80%

What is the contribution of smell to the sense of taste?

sweet, sour, bitter, salty, umami

What are the 5 primary taste sensations?

on the back of the tongue and in the throat

Where are our water and umami receptors?

tastants

What, specifically, binds to gustatory receptors?

dissolved in saliva, diffuse into taste pore, contact gustatory hairs

What are factors which influence our individual sense of taste?

thermoreceptors (temp), mechanoreceptors (texture), nociceptors (pain: spice)

What factors combine to give us the "complete" taste sensory experience?

facial (VII), hypoglossal (IX), vagus (X)

3 cranial nerves involved in gustation