When Someone Detects a Specific Odor, a Signal Is Sent

question 58

Multiple Choice

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.

Understand the critical periods of development from conception to birth and their implications.

Differentiate between various developmental research methods (longitudinal, cross-sectional, biographical) and their unique challenges.

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