Respuesta :
The three major sensory tracts involve chains of neurons
• First-order neuron
• Delivers sensations to the CNS
• The cell body is in the dorsal or cranial root ganglion
• Second-order neuron
• An interneuron with the cell body in the spinal cord
or brain
• Third-order neuron
• Transmits information from the thalamus to the
cerebral cortex