2023年4月13日 · The sacral vertebrae—also called the sacral spine—consists of five sacral vertebrae bones that fuse together to form the sacrum.

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 segments (S1-S5) that are fused together.

2021年12月27日 · The sacrum is a large, flat, triangular-shaped, irregular bone, alternatively known as the sacral vertebra or sacral spine. It comprises five fused vertebrae (S1-S5), located at the base of the vertebral column or spine. The bone links …

2023年10月11日 · The sacrum is a single bone located at the base of your spine. It consists of five separate vertebrae that fuse during adulthood. The sacrum helps support your upper body when you sit or stand.

What is the Sacral Spine? The sacral spine refers to the sacrum, a triangular-shaped bone located at the base of the spine between the lumbar spine and the coccyx (tailbone). It is composed of five fused vertebrae (S1-S5) and forms part of the pelvic structure.

2024年11月1日 · The sacrum consists of five fused sacral vertebral and costal segments (S1-S5) that form a central sacral body and paired sacral alae (singular ala), which arise laterally from S1. As the sacrum develops, costal elements form the parts superior, lateral and inferior to the anterior sacral foramina.

2023年7月30日 · The superior aspect of the sacrum, referred to as the sacral promontory, articulates superiorly with the L5 vertebral body of the lumbar spine. This arrangement forms the lumbosacral joint, which is reinforced by iliolumbar and lumbosacral ligaments.

2023年10月30日 · The sacrum is an irregularly shaped bone, made up of a group of five fused vertebrae in the area of what is commonly known as the base of the spine. 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 hip stability.

Learn about sacrum anatomy and its role in your lower spine. Discover how this triangular bone supports the pelvis, links to the spine, and contributes to stability and movement.

2025年1月31日 · Explore the anatomy, structure, and role of the sacrum bone with Innerbody's interactive 3D model. 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 …