3.3 Olfactory and Gustatory Systems Flashcards
What is olfaction?
smell
What type of sense is olfaction?
chemical sense
What activates olfactory receptors?
airborne chemical substances dissolved in fluid
What are olfactory nerves?
bipolar receptors cells
Where are the olfactory nerves located?
olfactory epithelium on the roof of the nasal cavity
Where do the olfactory nerves travel?
through ethmoid bone through the cribriform plate
Where do the olfactory nerves terminate?
olfactory bulbs
What are the olfactory tracts?
axons from the olfactory bulbs that travel to the temporal lobes
Where is the primary olfaction area located?
temporal lobes
What is the definition of smell?
combination of a limited number of primary odors that are detectable by the brain
What are the seven primary odors?
flora
ethereal
camphorates
musky
peppermint
pungent
putrid
What is the Gustatory system for?
taste
What type of sense is taste?
chemical sense
What activate the receptors of the gustatory system?
chemicals substances dissolved in saliva
Where are the taste receptors located?
taste buds primarily on tongue but throughout the mouth and throat
What is the function of the tongue?
gripping food and repositioning it between the teeth forming a bolus
What does the tongue do with the bolus?
pushes it back to the pharynx for swallowing
Where is the apex of the tongue located?
anteriorly
Where is the root of the tongue located?
posteriorly
Where is the frenulum located?
inferior surface of tongue at the midline
