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The perforate acetabulum is a cup-shaped opening on each side of the pelvic girdle formed where the ischium, ilium, and pubis all meet, and into which the head of the femur inserts. [ 8 ] [ 9 ] The orientation and position of the acetabulum is one of the main morphological traits that caused dinosaurs to walk in an upright posture with their ...
In flatworms, acetabulum is the ventral sucker situated towards the anterior part of the body, but behind the anterior oral sucker. It is composed of numerous spines for penetrating and gripping the host tissue. The location and structure of the acetabulum, and the pattern of the spine alignment are important diagnostic tool among trematode ...
The lunate surface of acetabulum is the articular surface of the acetabulum which makes contact with the femoral head as part of the hip joint. It forms an incomplete ring that is deficient inferiorly - opposite the acetabular notch .
The acetabular notch is a deep [citation needed] notch in the inferior portion of the rim of the acetabulum. [ 1 ] : 1354 It is bridged by the transverse acetabular ligament , converting it into a foramen (through which nerves and vessels (including the acetabular notch of obturator artery [ 1 ] : 1250 ) pass into the hip joint cavity).
The acetabulum, which can be thought of as a "hip-socket", is a cup-shaped opening on each side of the pelvic girdle formed where the ischium, ilium, and pubis all meet, and into which the head of the femur inserts. The orientation and position of the acetabulum is one of the main morphological traits that caused dinosaurs to walk in an upright ...
The acetabular fossa is the non-articular depressed region at the centre of the floor of the acetabulum.It is surrounded by the articular lunate surface. [1]: 1368 [2] The floor of the fossa is formed mostly by the ischium; [2] it is rough [1]: 1354 and thin (often to the point of transparency).
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A teardrop-shaped lower portion gives origin to the iliofemoral ligament of the hip joint and borders the rim of the acetabulum. [ 1 ] Anteromedially and inferiorly to the AIIS is the iliopsoas groove , the passage for the iliopsoas muscle as it passes down to the lesser trochanter of the femur .