The supraspinous ligament is a prominent fibrous band that runs along the spine, connecting the spinous processes of vertebrae. It provides stability and support to the vertebrae and helps to prevent excessive movement in the spine. Synonyms for the supraspinous ligament include the nuchal ligament, interspinous ligament, and ligamentum nuchae. The nuchal ligament is found in the upper part of the neck and provides support to the head, while the interspinous ligament connects adjacent spinous processes. The ligamentum nuchae is a thickened band of tissue that extends from the base of the skull to the spinous processes of the cervical vertebrae.