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Olfactory receptors (smell receptors) are 1.----- neurons surrounded by columnar epithelial cells


The distal ends of the olfactory neurons are covered with hairlike 1.-----.


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


The olfactory interpreting centers are located deep within the temporal lobes and at the base of the 1.----- lobes of the cerebrum.


Olfactory sensations usually fade rapidly as a result of sensory 1.-----.


A chemical would be considered 1.----- if a person lacks a particular receptor site on the cilia of the olfactory neurons


Olfactory receptor neurons are the only parts of the nervous system that come in contact with the outside environment directly. T/F


Taste receptor cells are modified 1.----- cells.

taste pore

The opening to a taste bud is called a taste 1.-----.


The taste 1.----- (also called microvilli) of a taste cell are its sensitive part


Before the taste of a substance can be detected, the substance must be dissolved in 1.-----.


Substances that stimulate taste cells seem to bind with 1.----- sites on the surfaces of taste hairs


Sour receptors are mainly stimulated by 1.-----.


Salt receptors are mainly stimulated by ionized inorganic 1.-----.


Alkaloids usually have a 1.----- taste

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