How many neurons conduct sensory impulses from the periphery to the postcentral gyrus?

Question

Quizplus · Accepted Answer

Sensory impulses from the periphery to the postcentral gyrus are conducted through a three-neuron pathway. The first neuron conducts the impulse from the sensory receptors to the spinal cord or brainstem, the second neuron takes it to the thalamus, and the third neuron carries it from the thalamus to the postcentral gyrus in the cerebral cortex.

How Many Neurons Conduct Sensory Impulses from the Periphery to the Postcentral