In the spinothalamic pathway, the sensory neuron that synapses with a neuron in the cerebral cortex is called the ________ neuron.
A) first-order
B) second-order
C) third-order
D) fourth-order
E) receptive

Question

Quizplus · Accepted Answer

In the spinothalamic pathway, the first-order neuron carries sensory information from the periphery to the spinal cord. The second-order neuron synapses with the first-order neuron in the spinal cord and sends the information up to the thalamus. The third-order neuron then carries the information from the thalamus to the somatosensory cortex in the cerebral cortex. Therefore, the sensory neuron that synapses with a neuron in the cerebral cortex is the third-order neuron.

In the Spinothalamic Pathway, the Sensory Neuron That Synapses with a Neuron