The sacrum is a complex structure providing support for the spine and accommodation for the spinal nerves. It also articulates with the hip bones. The sacrum has a base, an apex, and three surfaces – a pelvic, dorsal and a lateral surface. The base of the sacrum, which is broad and expanded, is directed upward and forward. On either side of the base is a large projection known as an ala of ...
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 pelvic girdle and lower limbs. This article reviews the anatomy of the sacrum, including bony landmarks, articulations, muscular attachments, neurovascular relations, and clinical relevance.
The sacrum is a fusion of five vertebrae that holds the pelvis and spinal column together. It is important for motion, strength, and balance. Learn more about it and conditions that can affect it.
Explore sacrum anatomy and learn about its role in your lower spine. Discover how this triangular bone supports the pelvis, connects to the spine, and impacts movement and stability.
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.
Details of sacrum anatomy: fused vertebrae, surfaces, foramina, variations, functions, and clinical significance for spine and pelvic care.
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. Sacrum is sexually dimorphic. It is shorter and wider in ...