The ischiopubic ramus is a compound structure consisting of the following two structures:
* from the
pubis, the bones
inferior pubic ramus
In vertebrates, the pubis or pubic bone () forms the lower and anterior part of each side of the hip bone. The pubis is the most forward-facing (ventral and anterior) of the three bones that make up the hip bone. The left and right pubic bones ar ...
* from the
, the
It forms the inferior border of the
obturator foramen
The obturator foramen is the large, Bilateral symmetry, bilaterally paired opening of the bony pelvis. It is formed by the pubis and ischium. It is mostly closed by the obturator membrane except for a small opening, the obturator canal, through wh ...
and serves as part of the origin for the
obturator internus
The internal obturator muscle or obturator internus muscle originates on the medial surface of the obturator membrane, the ischium near the membrane, and the rim of the pubis (bone), pubis.
It exits the pelvis, pelvic cavity through the lesser sc ...
and
externus muscles. Also, most
adductors originate at the ischiopubic ramus.
The
fascia of Colles
The membranous layer of the superficial fascia of the perineum (Colles' fascia) is the deeper layer (membranous layer) of the superficial perineal fascia. It is thin, aponeurotic in structure, and of considerable strength, serving to bind down the ...
is on attached to its margin.
References
External links
* (, )
Bones of the pelvis
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