Smell and Taste

Sour receptors are mainly stimulated by _____.

acids

Olfactory, or smell, receptors are _____ neurons surrounded by columnar epithelial cells.

bipolar

Alkaloids usually have a ______ taste.

bitter

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

cilia

The axons of olfactory receptors pass through small openings in the _____ of the ethmoid bone.

cribriform plate

Olfactory bulbs lie on either side of the _____ of the ethmoid bone.

crista galli

Taste receptor cells are modified _____ cells.

epithelial

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

frontal

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

odorless

The sensory impulses pass from the olfactory bulbs through the _____ to the interpreting centers of the brain.

olfactory tracts

Olfactory receptor neurons are the only parts of the nervous system that come in contact with the _____ directly.

outside environment

Substances that stimulate taste cells bind with _____ sites on the surface of taste hairs.

receptor

Salt receptors are mainly stimulated by ionized inorganic _____.

salts

Olfactory sensations usually fade rapidly as a result of _____.

sensory adaptation

The ______ of a taste cells are it's sensitive part.

taste hairs

The opening to a taste bud is called a ______.

taste pore

Before gaseous substances can stimulate the olfactory receptors, they much be dissolved in _____ that surrounds the cilia.

water

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

water