Coxal Bone:
Each coxal bone is made up of 3 bones: ilium, ischium, and pubis
• Ilium: largest and upper-most portion of the hip bone; features
include the iliac crest, sacroiliac joint, and the anterior superior
iliac spine
• Ischium: forms the L-shaped, posterior portion, that supports
weight during sitting; features include the ischial tuberosity and
ischial spine
• Pubis: constitutes the anterior portion of each hip bone; the 2
pubic bones join at the pubic symphysis; other features include
the pubic arch, obturator foramen, and pelvic brim
These 3 bones are fused in the region of the acetabulum, the
cuplike depression that articulates with the head of the femur