The posterior border of the
ala Ala, ALA, Alaa or Alae may refer to:
Places
* Ala, Hiiu County, Estonia, a village
* Ala, Valga County, Estonia, a village
* Ala, Alappuzha, Kerala, India, a village
* Ala, Iran, a village in Semnan Province
* Ala, Gotland, Sweden
* Alad, S ...
, shorter than the anterior, also presents two projections separated by a notch, the posterior superior iliac spine and the
posterior inferior iliac spine
The posterior inferior iliac spine (Sweeney's Tubercle) is an anatomical landmark that describes a bony "spine", or projection, at the posterior and inferior surface of the iliac bone.
It is one of two such spines on the posterior surface, the o ...
. The posterior superior iliac spine serves for the attachment of the oblique portion of the
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 d ...
s and the
multifidus
The multifidus (multifidus spinae : ''pl. multifidi'' ) muscle consists of a number of fleshy and tendinous fasciculi, which fill up the groove on either side of the spinous processes of the vertebrae, from the sacrum to the axis. While very thin ...
.
See also
*
Dimples of Venus
The dimples of Venus (also known as back dimples, Duffy Dimples, butt dimples or Veneral dimples) are sagittally symmetrical indentations sometimes visible on the human lower back, just superior to the gluteal cleft. They are directly superfici ...
References
External links
* – "Posterior view of the skeleton of the trunk."
* – "The Female Pelvis - bones"
* – "The Sacral and Coccygeal Vertebrae, Posterior View"
*
*
* https://web.archive.org/web/20170917131455/http://healthandspine.com/
Bones of the pelvis
Ilium (bone)
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