Ischium

The ischial (Latin ischium Latinized From the AltGr. Ἰσχίον ) is a flat bone and one of the components of the bony pelvis.

Man

The ischium forms the lower arcuate boundary of the clogged Hüftlochs ( obturator foramen ). Below it is thickened to the ischial tuberosity ( ischial tuberosity ). He serves as the muscle origin and as the seat point, being overlaid by a fat pad.

Above the ischial tuberosity is the ischial spine ( ischial spine ), which divides two outs in the pelvic line: greater sciatic notch, the large ischial collection and lesser sciatic notch, the small ischial collection ( Both recoveries are only seen from the side and therefore not shown here ).

Other Mammals

In most mammals, the ischial also involved in the formation of the symphysis pubis, so the faserknorpligen connection between the two pelvic halves. This section is also called the ischial symphysis. Symphysis and ischial symphysis pubis ( pubic symphysis ) here together form the symphysis pelvina. The side (lateral ) of the obturator foramen situated opposite proportion is called the ischial body (corpus ischium ). It forms in the rear portion of the hip joint socket ( acetabulum ). The medial obturator foramen situated part is called Sitzbeinast ( ramus ). Body and limb unite to back ( caudal ) to the ischial plate ( Tabula ischium ). Their rear lateral cusps arise from the ischial tuberosity ( ischial tuberosity ) of the various background cheek muscles ( biceps femoris, semitendinosus, semimembranosus ).

Viewed from the rear seat legs form both a concave arc, the Sitzbeinauschnitt ( ischial arch ). At the ischial cut the penis in male mammals and attached here also arise penis muscles.

The ischial spine shows at the four-footed animals up and has rather the shape of a bar. You heard at the quadrupeds to ilium, but is still referred to as the ischial spine ( pan comb ). The pan comb also shares greater sciatic notch and minor differ, only the latter is still part of the ischium.