Sacrococcygeal membrane

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Sacrococcygeal Membrane

The Sacrococcygeal Membrane is a thin, fibrous structure located at the base of the spine, specifically between the sacrum and the coccyx. It is part of the human anatomy and plays a crucial role in the stability and flexibility of the lower spine.

Etymology[edit | edit source]

The term "Sacrococcygeal" is derived from the Latin words "sacrum" meaning sacred bone, and "coccyx" meaning cuckoo, due to the resemblance of the bone to the beak of a cuckoo bird. The term "membrane" comes from the Latin "membrana" which means a thin layer or sheet.

Anatomy[edit | edit source]

The Sacrococcygeal Membrane is a part of the spinal column and is located at the base of the spine. It is a thin, fibrous structure that connects the sacrum and the coccyx. The sacrum is a large, triangular bone at the base of the spine and the coccyx, also known as the tailbone, is the final segment of the vertebral column. The membrane provides stability and flexibility to the lower spine, allowing for movement and support.

Function[edit | edit source]

The primary function of the Sacrococcygeal Membrane is to provide stability and flexibility to the lower spine. It allows for movement and support, particularly when sitting or bending. The membrane also serves as a protective barrier, preventing the entry of foreign substances into the spinal column.

Related Terms[edit | edit source]

  • Sacrum: A large, triangular bone at the base of the spine.
  • Coccyx: Also known as the tailbone, it is the final segment of the vertebral column.
  • Spinal Column: The series of vertebrae extending from the skull to the small of the back, enclosing the spinal cord and providing support for the thorax and abdomen.

See Also[edit | edit source]

Sacrococcygeal membrane Resources
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Contributors: Prab R. Tumpati, MD