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6.2: Innominate

  • Page ID
    11458
  • The innominate is made up of three bones which fuse late during the adolescent phase, including the ilium, ischium, and pubis. The bones fuse together at the center of the acetabulum, the fossa in which the femur articulates, each making up part of the articulation.

    Ilium

    Iliac crest, Greater sciatic notch, Lesser sciatic notch, Iliac tuberosity, Preauricular sulcus, Auricular surface, Iliac fossa, and Anterior superior and inferior spines

    Ischium

    Ischial tuberosity

    Pubis

    Pubic symphyses

    Structures formed by the intersection of the three bones of the innominate:

    Obturator foramen

    Acetabulum

    Lunate face and Fossa

    Screenshot (164).png

    Innominate. Anterior view.

    Screenshot (165).png

    Innominate. Posterior view.