When someone detects a specific odor, a signal is sent to the brain through the olfactory nerve. Which of the following describes how the brain is able to perceive the smell?
A)The odorant molecule has to bind to more than 50% of olfactory neuron dendrites in order for the smell to be perceived.
B)The odorant molecule binds specifically to its receptor to generate an EPSP that is transmitted through the olfactory nerve to the brain.
C)The odorant molecule binds to specific receptors; summed EPSPs transmit an action potential to general interneurons; and the signal is transmitted to the brain.
D)The odorant molecules bind to specific receptors; summed EPSPs transmit an action potential to the odorant-specific interneuron; and the signal is transmitted to the brain.

Question

Quizplus · Accepted Answer

The odorant molecules bind to specific receptors, and their summed EPSPs transmit an action potential to the odorant-specific interneuron, which then transmits the signal to the brain. This allows for a specific and unique perception of smell based on the odorant molecules that are detected.

When Someone Detects a Specific Odor, a Signal Is Sent