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Sacrospinous ligament
Articulations of pelvis, anterior view, with greater sciatic foramen (labeled in red) and its boundaries.
Details
From
Ischial spine
To
Sacrum
Identifiers
Latin
ligamentum sacrospinale
TA98
A03.6.03.007
TA2
1852
FMA
21485
Anatomical terminology
[edit on Wikidata]
The sacrospinous ligament (small or anterior sacrosciatic ligament) is a thin, triangular ligament in the human pelvis. The base of the ligament is attached to the outer edge of the sacrum and coccyx, and the tip of the ligament attaches to the spine of the ischium, a bony protuberance on the human pelvis. Its fibres are intermingled with the sacrotuberous ligament.
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The sacrospinousligament (small or anterior sacrosciatic ligament) is a thin, triangular ligament in the human pelvis. The base of the ligament is attached...
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and anterior to the sacrospinousligament. The coccygeus muscle is posterior to levator ani and anterior to the sacrospinousligament in the pelvic floor...
turn unite to form the pudendal nerve proper just proximal to the sacrospinousligament. The three roots are derived from the ventral rami of the 2nd, 3rd...
formed by the sacrotuberous ligament which runs between the sacrum and the ischial tuberosity and the sacrospinousligament which runs between the sacrum...
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becomes entrapped between this ligament and the sacrospinousligament causing perineal pain, the sacrotuberous ligament is surgically severed to relieve...
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strengthened by a series of ligaments: The ventral or anterior sacrococcygeal ligament is an extension of the anterior longitudinal ligament (ALL) that runs down...
the pelvis through the greater sciatic foramen superior to the sacrospinousligament. In around 80% of the population, the sciatic nerve travels below...
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piriformis muscle, entrapment that occurs between the sacrospinousligament and sacrotuberous ligament (most common cause), entrapment in the Alcock canal...
the posterior human pelvis. It is formed by the sacrotuberous and sacrospinousligaments. The piriformis muscle passes through the foramen and occupies most...
inferior iliac spine (above), and the ischial spine (below). The sacrospinousligament changes this notch into an opening, the greater sciatic foramen...
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The anterior longitudinal ligament is a ligament that extends across the anterior/ventral aspect of the vertebral bodies and intervertebral discs the spine...
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either side to the sacrotuberous and sacrospinousligaments, to the coccygeus and levator ani in front of the ligaments, and to the gluteus maximus behind...
The posterior longitudinal ligament is a ligament connecting the posterior surfaces of the vertebral bodies of all of the vertebrae of humans. It weakly...
the pubic symphysis. Supporting ligaments include the sacrospinous and sacrotuberous ligaments. The sacrospinousligament is unusual in that it is thin...
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The posterior sacrococcygeal ligament or dorsal sacrococcygeal ligament is a ligament which stretches from the sacrum to the coccyx and thus dorsally across...
The posterior sacroiliac ligament is situated in a deep depression between the sacrum and ilium behind; it is strong and forms the chief bond of union...