which neuron type delivers information to the cns?
The three major sensory tracts involve chains of neurons â¢ First-order neuron â¢ Delivers sensations to the CNS â¢ The cell body is in the dorsal or cranial root ganglion â¢ Second-order neuron â¢ An interneuron with the cell body in the spinal cord or brain â¢ Third-order neuron â¢ Transmits information from the thalamus to the cerebral cortex. 1  Comments.