Medial to the
anterior inferior iliac spine
The anterior inferior iliac spine (AIIS) is a bony eminence on the anterior border of the hip bone, or, more precisely, the wing of the ilium.
Structure
The AIIS is a bony eminence on the anterior border of the ilium. It is below the anterior ...
is a broad, shallow groove, over which the
iliacus
The iliacus is a flat, triangular muscle which fills the iliac fossa. It forms the lateral portion of iliopsoas, providing flexion of the thigh and lower limb at the acetabulofemoral joint.
Structure
The iliacus arises from the iliac fossa on t ...
and
psoas major
The psoas major ( or ; from ) is a long fusiform muscle located in the lateral lumbar region between the vertebral column and the brim of the lesser pelvis. It joins the iliacus muscle to form the iliopsoas. In other animals, this muscle is e ...
muscles pass. This groove is bounded medially by an eminence, the iliopubic eminence (or iliopectineal eminence), which marks the point of union of the
ilium and
pubis.
It constitutes a lateral border of the
pelvic inlet
The pelvic inlet or superior aperture of the pelvis is a planar surface which defines the boundary between the pelvic cavity and the abdominal cavity (or, according to some authors, between two parts of the pelvic cavity, called lesser pelvis an ...
.
The
iliopectineal line
The iliopectineal line is the border of the iliopubic eminence. It can be defined as a compound structure of the arcuate line (from the ilium) and pectineal line (from the pubis). With the sacral promontory, it makes up the linea terminalis
T ...
is the border of the eminence.
The
psoas minor
The psoas minor muscle ( or ; from ) is a long, slender skeletal muscle. When present, it is located anterior to the psoas major muscle.Tank (2005), p 93Gray (2008), p 1372
Structure
The psoas minor muscle originates from the vertical fascicles ...
, when present, inserts at the
pectineal line of the eminence.
Additional images
File:Gray404.png, Left levator ani from within
File:Skeletal pelvis-pubis.svg, Pelvis
See also
*
Iliofemoral ligament
The iliofemoral ligament is a thick and very tough triangular capsular ligament of the hip joint situated anterior to this joint. It attaches superiorly at the inferior portion of the anterior inferior iliac spine and adjacent portion of the marg ...
References
Bones of the pelvis
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