Sacrospinalis
Sacrospinalis
Sacrospinalis (pronunciation: /ˌsæ.kroʊ.spɪˈneɪ.lɪs/), also known as the Erector Spinae, is a large muscle group that extends longitudinally along the back of the vertebral column from the sacrum to the base of the skull.
Etymology
The term "Sacrospinalis" is derived from the Latin words "sacrum", which refers to the large, triangular bone at the base of the spine, and "spinalis", which pertains to the spine.
Anatomy
The Sacrospinalis is divided into three columns: the Iliocostalis, the Longissimus, and the Spinalis. Each of these columns is further divided into parts based on the regions of the vertebral column they are attached to.
The Sacrospinalis plays a crucial role in maintaining the upright posture of the body and performing extension and lateral flexion of the vertebral column and head.
Related Terms
- Vertebral column: The series of vertebrae extending from the base of the skull to the coccyx that forms the supporting axis of the body.
- Muscle: A tissue composed of cells or fibers, the contraction of which produces movement in the body.
- Sacrum: The large, triangular bone at the base of the spine and at the upper and back part of the pelvic cavity.
- Spine: The series of vertebrae in a vertebrate animal that houses the spinal cord.
See Also
External links
- Medical encyclopedia article on Sacrospinalis
- Wikipedia's article - Sacrospinalis
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