Tract
Info. Conveyed
1° → 2° Order Neuron
Crossed
3° Order Neuron
Termination
Dorsal column–medial lemniscus
Two-point touch, light touch, joint position sense, vibration, pressure
Dorsal root ganglia (DRG) → Gracilis and cuneate nuclei
Yes; internal arcuate fibers (in medulla)
Ventral posterior (lateral) nucleus of thalamus (VPL)
Postcentral gyrus and paracentral lobule (posterior part)
Spinothalamic: neo and paleo
Pain, temperature, light touch
DRG → Dorsal horn laminae
Yes; in ventral white commissure
VPL (neo) and intralaminar (paleo) thalamic nuclei
Postcentral gyrus and paracentral lobule (posterior part) (neo) and widespread cortex/limbic system (paleo)
Spinoreticular
Pain and temperature
DRG → Intermediate gray laminae
Majority; in ventral white commissure
-
Pontine and medullary reticular formation
Spinomesencephalic (spinotectal)
Pain (and temperature)
DRG → Dorsal horn laminae
Yes; in ventral white commissure
-
Midbrain: superior colliculus and periaqueductal gray
Dorsal spinocerebellar
Lower limb position sense
DRG → Clarke’s nucleus (nucleus dorsalis)
No
-
Cerebellum via inferior cerebellar peduncle
Cuneocerebellar
Upper limb position sense
DRG → Lateral cuneate nucleus
No
-
Cerebellum via inferior cerebellar peduncle
Ventral spinocerebellar
Lower limb position sense
DRG → Lamina VII
Yes, in cord and recrosses in cerebellum
-
Cerebellum via superior cerebellar peduncle
Spino-olivary
Limb position
DRG → Spinal gray
Yes; in cord
-
Inferior olivary nucleus