Neurons in sensory pathways that project to the thalamus would be which order of neuron?
A) first
B) second
C) third
D) fourth

Question

Quizplus · Accepted Answer

Sensory pathways have three orders of neurons, and the neuron that projects to the thalamus is the second-order neuron. The first-order neuron receives sensory input from the periphery and transmits it to the spinal cord or brainstem, where it synapses with the second-order neuron. The second-order neuron carries the sensory information to the thalamus, where it synapses with the third-order neuron. The third-order neuron projects to the sensory cortex, where the perception of the sensory input occurs. Therefore, neurons in sensory pathways that project to the thalamus would be second-order neurons.

Neurons in Sensory Pathways That Project to the Thalamus Would