Which of the following statements about olfaction,the sense of smell,in terrestrial vertebrates is(are)true?
I-Involved chemoreceptors are located in the upper portion of the nasal passages.
II-These receptors are bipolar neurons whose dendrites end in tassels of cilia that project into the nasal mucosa.
III-The axons of these receptors project directly into the cerebral cortex.
IV-Thousands of different smells can be discerned as opposed to only four kinds of taste.
A)I and II
B)II,III,and IV
C)I,III,and IV
D)I,II,III,and IV

Question

Quizplus · Accepted Answer

All the statements are true: I and II describe the location and structure of olfactory receptors, III describes the direct pathway of olfactory signals to the brain, and IV highlights the complexity of olfactory perception compared to taste.

Which of the Following Statements About Olfaction,the Sense of Smell,in