- Spinal cord cross-section: central H-shaped grey matter surrounded by white matter carrying ascending and descending tracts, supplied by longitudinal spinal arteries.
Internal Structure: Grey Matter
- Grey matter, each half: posterior horn (sensory relay), anterior horn (motor), and, only at T1 to L2/L3 and S2 to S4, a lateral horn (autonomic).
internal structure of the spinal cord in cross-section Internal structure of the spinal cord in cross-section.