Lower Thoracic Cord (T12)
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Gray Matter
Anterior Horn: Motor Nuclei
Posterior Horn:
Posteromarginal Nucleus
Nucleus Proprius
Substantia Gelatinosa
Clarke's Column (Nucleus Dorsalis)
Intermediate Horn: Intermediolateral Cell Column
Tracts:
Anterior Funiculus

Motor
Medial Reticulospinal
Lateral Vestibulospinal
 		Sensory
Anterior Spinothalamic
Anterior White Commissure
Lateral Funiculus
Motor
Lateral Corticospinal
Lateral Reticulospinal
 		Sensory:
Lateral Spinothalamic
Posterior Spinocerebellar

Posterior Funiculus
Fasciculus Gracilis
Zone of Lissauer

 Other:
Anterior median fissure
Dorsal root entry zone, medial & lateral
Dorsal roots
Ventral roots
Anterior spinal artery
Posterior spinal arteries
Central Canal

T-12 Cord Level Features:
Small over all diameter, round shape.
Thin anterior and posterior gray horns with Clarke's column. Prominent intermediolateral cell columns.
Posterior white funiculus is not divided by a septum.
Fasciculus gracilis only from T-6 and lower.