Question

Which of the following statements regarding olfaction is not true? select an answer and submit. for keyboard navigation, use the up/down arrow keys to select an answer.

a olfactory glands secrete mucus.
b the olfactory tract carries sensory information to the brain.
c the olfactory epithelium is in the roof of the nasal cavity.
d the olfactory hairs are the axons of olfactory sensory neurons.

Answer 1

The incorrect statement regarding olfaction is that the olfactory hairs are the axons of olfactory sensory neurons, when in reality, they are cilia extending from the dendrites of these neurons.

Step-by-step explanation:

The statement that is not true regarding olfaction is: D) the olfactory hairs are the axons of olfactory sensory neurons. In fact, the olfactory hairs are cilia that extend from the dendrites, not axons, of the olfactory sensory neurons. These cilia have receptors that are sensitive to different odorants. The correct statements are: A) olfactory glands secrete mucus, B) the olfactory tract carries sensory information to the brain, and C) the olfactory epithelium is in the roof of the nasal cavity.