Sacrotuberous ligament
Sacrotuberous Ligament
The Sacrotuberous Ligament (pronunciation: /ˌsæ.kroʊ.tjuːˈbɛr.əs ˈlɪɡ.ə.mənt/) is a significant structure in the human body, particularly in the pelvis region.
Etymology
The term 'Sacrotuberous Ligament' is derived from the Latin words 'sacro' meaning 'sacred' or 'sacrum', and 'tuberous' meaning 'swelling' or 'tuber'. The ligament connects the sacrum to the tuber of the ischium, hence the name.
Anatomy
The Sacrotuberous Ligament is a broad and thick ligament located at the lower part of the posterior pelvis. It originates from the posterior superior iliac spine, the posterior sacroiliac ligaments, and the lateral margins of the lower sacrum and upper coccyx. It then extends to the inner margin of the ischial tuberosity.
The ligament plays a crucial role in stabilizing the sacrum and preventing its anterior rotation. It also provides attachment for several muscles, including the gluteus maximus and coccygeus.
Related Terms
- Sacrum: The triangular bone at the base of the spine, situated between the two hip bones of the pelvis.
- Ischial tuberosity: The bony protrusion that carries the weight of the body when sitting.
- Gluteus maximus: The main extensor muscle of the hip, and the most superficial muscle of the buttocks.
- Coccygeus: A small muscle located in the pelvic region, which helps support pelvic organs.
See Also
External links
- Medical encyclopedia article on Sacrotuberous ligament
- Wikipedia's article - Sacrotuberous ligament
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