In figure a, the pain and temperature sensory pathway is depicted. The first-order neuron enters thespinal cord and forms a synapse with the second-order neuron, which its axon ends in the thalamus.The third-order neuron transmits the information to the brain cortex. Figure b shows the vibration andproprioception (joint position) sensory pathway. The axon terminals of the first-order neurons arelocated in the brain stem and form synapses with second-order neuron, which crosses the midline andtheir axons end in the thalamus. finally, the sensory information is conducted to the cortex via thethird-order neurons.Following a spinal injury, the right ventral and left dorsal sides of the white matter in thoracolumbarspinal cord are damaged.