Left & Right Innominate Bones
|The two innominate bones articulate along the midventral line to form the pelvic girdle.
Each bone is composed of three fused bones: the ileum (1), the pubis (2), and the ischium (3). The pubic symphysis is the line where the two innominate bones articulate.
The red arrows indicate where the innominate articulates with the sacrum.
The cup-like acetabulum is the point where the innominates articulate with the femur, forming the hip joint.
The ishial tuberosities and iliac crests are important points of muscle attachment.
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