. Cunningham's Text-book of anatomy. Anatomy. 230 OSTEOLOGY. The ilium has two surfaces, medial and lateral. The lateral surface is divided into two parts, viz., a lower acetabular, and an upper gluteal part. The lower forms a little less than the upper two-fifths of the acetabular hollow, and is separated from the larger gluteal surface above by the upper prominent margin of the arti- cular cavity. The gluteal surface, broad and expanded, is concavo-convex from behind forward. It is traversed by three rough gluteal ( curved) lines, well seen in strongly developed bones, but often faint an
. Cunningham's Text-book of anatomy. Anatomy. 230 OSTEOLOGY. The ilium has two surfaces, medial and lateral. The lateral surface is divided into two parts, viz., a lower acetabular, and an upper gluteal part. The lower forms a little less than the upper two-fifths of the acetabular hollow, and is separated from the larger gluteal surface above by the upper prominent margin of the arti- cular cavity. The gluteal surface, broad and expanded, is concavo-convex from behind forward. It is traversed by three rough gluteal ( curved) lines, well seen in strongly developed bones, but often faint and indistinct in feebly marked speci- mens. Of these the linea glutaea inferior (inferior gluteal line) curves backwards from a point immediately above the anterior inferior spine towards the greater sciatic notch posteriorly; the bone between this and the acetabular margin is marked by a rough shallow groove, from which the reflected head of the rectus femoris muscle arises. The linea glutaea .External oblique quadratus lumborum anterior (anterior gluteal line) commences at the crest of the ilium, about one inch and a half behind the anterior superior iliac spine, and sweeps backwards and downwards towards the upper and posterior part of the greater sciatic notch. The sur- face between this line and the preceding furnishes an extensive origin for the glutseus minimus muscle. The. Sartorius Tensor fasciae lat^e Reflected head of rectus femoris Straight head of rectus femoris Semimembranosus Biceps and semitendinosus QUADRATUS FEMORIS pyramidalis Rectus abdominis Adductor longus Gracilis linea glutaea posterior (posterior gluteal line) leaves the iliac crest about two and a half inches in front of the posterior superior iliac spine, and bends down- wards and slightly for- wards in a direction anterior to the posterior inferior spine. The area between this and the anterior gluteal line Adductor brevis Adductor maonus Fig. 230.—Lateral Aspect of the Right Hip Bone with the Attach
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