chapter 17 the special senses

Question 1

The receptors for smell or olfaction are located?

Answer 1

are located in the olfactory epithelium of the nose

Question 2

Olfactory epithelium

Answer 2

occupies the superior part of the nasal cavity

covering the inferior surface of the cribriform plate

extending along the superior nasal concha

consists of 3 kinds of cells:

-olfactory receptor cells
-supporting cells
-basal cells

Question 3

olfactory receptor cells

Answer 3

-1st order neurons of the olfactory pathway

-each olfactory receptor cell is a bipolar neuron with an exposed, knob shaped dendrite & an axon projecting through the cribriform plate that ends in an olfactory bulb

Question 4

olfactory cilia

Answer 4

extending from the dendrite of each olfactory receptor cell are several nonmotile olfactory cilia

olfactory cilia are the sites for olfactory transduction (conversion of stimulus energy into a graded potential in a sensory receptor).