Sacrum - Wikipedia
The sacrum (pl.: sacra or sacrums[1]), in human anatomy, is a triangular bone at the base of the spine that forms by the fusing of the sacral vertebrae (S1–S5) between ages 18 and 30.
Sacrum: Anatomy, Function, and Associated Conditions
Oct 23, 2025 · 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, and helps …
Sacrum Anatomy: Structure, Surfaces, Muscles, and Clinical ...
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 …
Sacrum Anatomy: Understanding Your Lower Spine
The sacrum is a triangular-shaped bone that forms the foundation of the spine, connecting it to the pelvis. The sacral vertebrae, sacral hiatus, and sacral foramina are essential anatomical …
Sacrum | Vertebrae, Spine & Pelvis | Britannica
Sacrum, wedge-shaped triangular bone at the base of the vertebral column, above the caudal (tail) vertebrae, or coccyx, that articulates (connects) with the pelvic girdle.
What Is the Sacrum? Location, Function, and Common Issues
Aug 16, 2025 · The sacrum is a triangular-shaped bone located at the base of the spine, playing a fundamental role in the human skeletal system. It is a central component of the pelvis, …
The Sacrum Bone: Anatomy and 3D Illustrations - Innerbody
Dec 22, 2025 · The sacrum is a large wedge shaped vertebra at the inferior end of the spine. It forms the solid base of the spinal column where it intersects with the hip bones to form the pelvis.