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18 terms

Ch 12 taste and smell

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bipolar
Olfactory receptors (smell receptors) are 1.----- neurons surrounded by columnar epithelial cells
cilia
The distal ends of the olfactory neurons are covered with hairlike 1.-----.
fluid
Before gaseous substances can stimulate the olfactory receptors, they must be dissolved in 1.----- that surrounds the cilia.
cribriform plate
The axons of the olfactory receptors pass through small openings in the 1.----- 2.----- of the ethmoid bone.
crista galli
Olfactory bulbs lie on either side of the 1.----- 2.----- of the ethmoid bone
olfactory tracts
The sensory impulses pass from the olfactory bulbs through the 1.----- 2.----- to the interpreting centers of the brain
frontal
The olfactory interpreting centers are located deep within the temporal lobes and at the base of the 1.----- lobes of the cerebrum.
adaptation
Olfactory sensations usually fade rapidly as a result of sensory 1.-----.
odorless
A chemical would be considered 1.----- if a person lacks a particular receptor site on the cilia of the olfactory neurons
true
Olfactory receptor neurons are the only parts of the nervous system that come in contact with the outside environment directly. T/F
epithelial
Taste receptor cells are modified 1.----- cells.
taste pore
The opening to a taste bud is called a taste 1.-----.
hairs
The taste 1.----- (also called microvilli) of a taste cell are its sensitive part
saliva
Before the taste of a substance can be detected, the substance must be dissolved in 1.-----.
receptors
Substances that stimulate taste cells seem to bind with 1.----- sites on the surfaces of taste hairs
acids
Sour receptors are mainly stimulated by 1.-----.
salts
Salt receptors are mainly stimulated by ionized inorganic 1.-----.
bitter
Alkaloids usually have a 1.----- taste