The dorsal and ventral spinothalamic tracts are located in the dorsal and ventral funiculi. These tracts carry the impulses of pain, temperature, touch and pressure.
The dorsal spinothalamic neurons carry the haptic-proprioceptive information to the central nervous system (CNS). The ventral spinothalamic neurons carry the information of nociception to the CNS.
Thus, the blanks can be filled with dorsal spinothalamic; ventral spinothalamic.