References. 1  Hess CL, Howard MA, Attinger CE. 2  McCulloch J. Physical modalities in wound management: ultrasound, Vasopneumatic devices and hydrotherapy. 3  Davis SC, Ovington LG.  Dyson M. Therapeutic application of ultrasound.
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.
Unipolar neurons are the most common type of sensory neuron. In addition to pain and touch, they also carry information about temperature, taste, proprioception (body position), and visceral organ activity.