The tubercles of the inferior articular processes of the fifth sacral vertebra, known as the sacral cornua, are projected downward and are connected to the cornua of the coccyx.

The sacral region (sacrum) is at the bottom of the spine and lies between the fifth segment of the lumbar spine (L5) and the coccyx (tailbone). The sacrum is a triangular-shaped bone and consists of five …

Oct 23, 2025 · What Does the Sacrum Do? The sacrum is a single bone made from five fused vertebrae that connects the spine to the pelvis. It supports the body's core, especially when sitting or standing, …

Nov 6, 2025 · The sacrum is a large, triangular bone at the terminal end of the vertebral column. It forms the posterior wall of the pelvis and plays a key role in weight transmission from the axial skeleton to …

The sacral curve, formed by the sacral vertebrae, helps to maintain spinal alignment and distribute weight evenly. Understanding the anatomy of the sacral vertebrae is key to a healthy spine. These …

The sacrum is a large bone located at the terminal part of the vertebral canal, where it forms the posterior aspect of the pelvis. It is remarkably thick, which aids in supporting and transmitting the …

Nov 25, 2024 · Let’s start with a quick anatomy lesson: According to Russell DeMicco, D.O., the associate director of the Cleveland Clinic Center for Spine Health in Ohio, “the sacrum is a triangular …

Sep 12, 2025 · It is formed by the fusion of five sacral vertebrae (S1–S5) and serves as a keystone for weight transmission from the axial skeleton to the pelvic girdle. Positioned between the fifth lumbar …

Mar 20, 2024 · It is situated just above the buttocks and at the base of the spine inferior to the vertebral region. Specifically, the sacral region comprises a triangular area that overlies the sacrum which …

Key Features: Median and lateral parts, apex, base, sacral cornu, and sacral tuberosity. Articulates With: Fifth lumbar vertebra and coccyx. Arterial Supply: Iliolumbar, lateral sacral, and median sacral …