Which of the following neurons correspond to the gustatory-salivary reflex's afferent and efferent components, respectively?A.Sensory neuron, preganglionic neuronB.Preganglionic neuron, sensory neuronC.Interneuron, postganglionic neuronD.Postganglionic neuron, interneuron
Question
Which of the following neurons correspond to the gustatory-salivary reflex's afferent and efferent components, respectively?A.Sensory neuron, preganglionic neuronB.Preganglionic neuron, sensory neuronC.Interneuron, postganglionic neuronD.Postganglionic neuron, interneuron
Solution
The gustatory-salivary reflex involves the taste buds sending signals to the brain (afferent), and the brain sending signals to the salivary glands to produce saliva (efferent).
A. Sensory neuron, preganglionic neuron: This is the correct answer. The sensory neuron is responsible for carrying signals from the taste buds to the brain (afferent component). The preganglionic neuron, part of the autonomic nervous system, carries signals from the brain to the salivary glands (efferent component).
B. Preganglionic neuron, sensory neuron: This is incorrect. The order is reversed.
C. Interneuron, postganglionic neuron: This is incorrect. Interneurons are involved in processing information in the brain, not in carrying signals to or from the brain. Postganglionic neurons carry signals from the ganglia to the target organs, but they are not directly involved in the gustatory-salivary reflex.
D. Postganglionic neuron, interneuron: This is incorrect. The order is reversed, and as mentioned above, these neurons are not directly involved in the gustatory-salivary reflex.
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