- Source: Posterior sacroiliac ligament
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 between the bones.
It consists of numerous fasciculi, which pass between the bones in various directions.
The upper part (short posterior sacroiliac ligament) is nearly horizontal in direction, and pass from the first and second transverse tubercles on the back of the sacrum to the tuberosity of the ilium.
The lower part (long posterior sacroiliac ligament) is oblique in direction; it is attached by one extremity to the third transverse tubercle of the back of the sacrum, and by the other to the posterior superior spine of the ilium.
See also
Anterior sacroiliac ligament
References
This article incorporates text in the public domain from page 307 of the 20th edition of Gray's Anatomy (1918)
External links
pelvis at The Anatomy Lesson by Wesley Norman (Georgetown University) (pelvisposteriorligaments)
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