Sectional Organization of the Spinal Cord

Posterior Funiculus

axon sensory (afferent) pathways

Lateral Funiculus

axons for autonomic motor pathways

Anterior Funiculus

axons for somatic motor pathways

Posterior (Dorsal) Horn

sensory (afferent) pathways cellbodies

Lateral Horn

autonomic motor pathways cellbodies

Anterior (ventral) Horn

somatic motor pathways cellbodies

Gray Commissure

crosses over information from left to right of body, also used for reflexes; axons

Central Canal

contains CSF; axons

Dorsal Root

sensory pathways axons

Dorsal Root Ganglion

contains cellbodies

Ventral Root

axons for somatic and autonomic motor pathways

Spinal Nerve

where dorsal root and ventral root join outside of the spinal cord contains axons

Posterior Median Sulcus

Anterior Median Fissure