Anterior vs Posterior: The Surprising Difference Between Spine’s Two Faces

Tue, 05 May 2026 13:25:07 +0000

Anterior vs Posterior: The Surprising Difference Between the Spine’s Two Faces The human spine is often viewed as a simple column of vertebrae stacked one on top of another, but its true complexity lies in its duality—the distinct roles of its two primary anatomical faces: the anterior (front) and posterior (back). While both faces work together to support posture, movement, and protection of the spinal cord, their structural differences reveal fascinating insights into spinal function, injury mechanisms, and clinical care. ### What is the Anterior Face of the Spine? The anterior face—the front of the vertebrae—plays a critical role in stabilizing the spine and facilitating flexion (forward bending). Comprising the aligned vertebral bodies, the anterior longitudinal ligament (ALL), and muscles like the rectus abdominis and lumbar flexors, this side is designed for strength and control during flexion movements.