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.

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 …

Nov 21, 2025 · The sacrum is a large, triangular bone situated at the base of the vertebral column. It is the final segment of the spine, positioned just above the coccyx, or tailbone. This …

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 …

The sacrum is a large, triangular bone situated at the base of the spine, positioned like a shield at the back of the pelvis. This wedge-shaped structure is composed of five individual vertebrae …

Oct 30, 2023 · Regarded as the keystone of the human body, the sacrum is important because it forms a link between the spine and the iliac bones, and also has an important part to play in …

4 days ago · 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.

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.

Sep 12, 2025 · The sacrum is a triangular, wedge-shaped bone formed by the fusion of five sacral vertebrae and positioned between the lumbar spine and the coccyx. It forms the posterior wall …

The sacrum is a large, triangular bone located at the base of the vertebral column and the posterior part of the pelvis. It forms the keystone of the pelvic girdle, anchoring the spine to the …