What Accounts for the Sensitization of the Gill-Withdrawal Reflex in Aplysia

question 5

Multiple Choice

What accounts for the sensitization of the gill-withdrawal reflex in Aplysia?

• A) Motor neurons release serotonin, which increases the number of vesicles available to release glutamate from the sensory neuron.
• B) Motor neurons release glutamate, which increases the number of vesicles available to release serotonin from the interneurons.
• C) Interneurons release serotonin, which increases the number of vesicles available to release glutamate from the sensory neuron.
• D) Interneurons release glutamate, which increases the number of vesicles available to release serotonin from the sensory neuron.