Regarding olfaction, which of the following statements is FALSE?
A)There are roughly five million nerve fibers embedded in the lining of the upper nasal passages.
B)The theory of smell that holds that odors are related to the shapes of chemical molecules is known as the opponent-process theory.
C)Five people out of 100 experience some degree of anosmia.
D)Blows to the head can tear the olfactory nerve and cause anosmia.

Question

Quizplus · Accepted Answer

The theory that proposes odors are related to the shapes of chemical molecules is known as the "shape theory" or "lock and key" theory of olfaction, not the opponent-process theory. The opponent-process theory is more commonly associated with how we perceive colors.

Regarding Olfaction, Which of the Following Statements Is FALSE