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The arcuate line of the ilium is a smooth rounded border on the internal surface of the ilium. It is immediately inferior to the iliac fossa and Iliacus muscle. It forms part of the border of the pelvic inlet. In combination with the pectineal line, it comprises the iliopectineal line. [1]
There is an arcuate line (linea arcuata) in the lower part of the iliac fossa, which adjoins the auricular surface (facies auricularis) in front. This surface together with the sacral surface forms the sacro-iliac joint.
The arcuate line of ilium is an oblique bony ridge located on its inner or medial surface. it connects antero-inferiorly with the pectineal line (a.k.a. pecten pubis), which is the sharp border of the superior ramus of the pubis. Postero-superiorly, it extends to the ala and promontory of the sacrum.
12 gru 2023 · It features a smooth, rounded line, called the arcuate line, running anteroinferior from the auricular surface to the acetabulum. This is the point where the body and ala join. Surfaces. The four borders of the troy surround the three bony surfaces; gluteal, sacropelvic, and troy. 1. Gluteal Surface
The arcuate line of ilium is the narrow ridge found along the internal surface of the bone. It extends anteromedially from the anterior margin of the auricular surface of ilium to the iliopubic eminence.
The arcuate line of the ilium is a smooth, curved ridge found on the internal surface of the ilium in the pelvic bone, marking the boundary between the true pelvis above and the false pelvis below. It serves as an important landmark for anatomical orientation and surgical procedures.
It features an oblique bony ridge referred to as the arcuate line. Antero-inferiorly, it continues as the pectineal line (a.k.a. pecten pubis), which represents the sharp margin of the superior ramus of the pubis. Postero-superiorly, it connects with the ala and promontory of the sacrum.
