Iliumstrukturen
Iliumstrukturen refers to the anatomical structures of the ilium, which is the largest of the three bones composing the pelvis. The ilium is a flared, wing-like bone forming the upper and posterior part of the hip bone. Its structure is crucial for weight bearing, muscle attachment, and protection of abdominal organs. Key features of the ilium include the iliac crest, which is the superior border, providing attachment for muscles of the back and abdomen. Inferiorly, the ilium articulates with the ischium and pubis to form the acetabulum, the socket for the hip joint. The iliac fossa is a large, concave depression on the internal surface of the ilium, serving as an attachment site for the iliacus muscle. The external surface of the ilium features gluteal lines, which are ridges indicating the origins of the gluteal muscles. These structural elements collectively enable the ilium to support body weight, facilitate locomotion, and provide stability to the pelvic girdle. Variations in ilium structure can occur due to genetics, age, sex, and pathological conditions.