Pelvis and Hip

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Pelvis and Hip
2011-10-23 23:40:30
kinesiology hip pelvis

Anatomy of the pelvis and hip
Show Answers:

  1. List the Innominate/Coxae bones of the Pelvis.

    Where do they fuse?
    • - Ilium
    • - Ischium
    • - Pubis

    They fuse at the acetabulum.
  2. What is ASIS and what does it stand for?
    ASIS is the Anterior Superior Iliac Spine.

    It is a landmark on the anterior of the Ilium on the Pelvis.

  3. What is the AIIS and what does it stand for?
    AIIS is the Anterior Inferior Iliac Spine.

    It is a landmark below the ASIS on the Pelvis.
  4. What are the PSIS and the PIIS?
    The PSIS is the Posterior Superior Iliac Spine and it is a landmark on the posterior side of the Ilium.

    The PIIS is the Posterior Inferior Iliac Spine. It is a landmark below the PSIS.
  5. What type of joints are sacroiliac joints?

    Are they mobile?
    Sacroiliac joints are diarthrodial synovial joints.

    They are mobile.
  6. What is the symphysis pubis?
    A synarthrodial fibrous joint with minimal movement, a fibrocartilaginous disc and a ligamentous capsule.
  7. What type of joint is the hip joint?

    What is the acetabular labrum?
    A ball-and-socket joint. This means it is very mobile and relatively stable.

    The acetabular labrum is a ring of cartilage that surrounds the acetabulum and deepens the hip socket.
  8. Iliofemoral Ligament
    O: AIIS

    I: Intertrochanteric Line

    A: Prevents hyperextension
  9. Pubofemoral Ligament
    O: Superior Pubic Ramus

    I: Neck of femur

    A: Prevents hyperabduction
  10. Ischiofemoral Ligament
    O: Posterior Ischium

    I: Greater trochanter

    A: Prevents hyperadduction
  11. Ligamentum Teres
    Small ligament that holds femur to acetabulum
  12. Illiacus
    O: Iliac Fossa

    I: Lesser trochanter

    A: Hip Flexion

    Innervation: Femoral n.
  13. Psoas Major
    O: Anterior Aspect of vertebrae

    I: Lesser trochanter

    A: Hip flexion; trunk flexion

    Innervation: L2-L3 directly
  14. Sartorius
    O: ASIS

    I: Anteromedial tibia via the pes anserine tendon

    A: Hip flexion, abduction, external rotation (and knee flexion, internal rotation of the tibia)

    Innervation: Femoral n.
  15. Rectus Femoris
    *Only quadraceps muscle to cross hip

    O: AIIS

    I: Patellar Tendon

    A: Hip flexion, knee extension

    Innervation: Femoral n.
  16. Gluteus Maximus
    O: Sacrum; Superior gluteal line of ilium

    I: Greater trochanter (IT band)

    A: Hip extension and external rotation

    Innervation: Inferior Gluteal n.
  17. Gluteus Medius
    O: Iliac Crest, ilium between superior and middle gluteal lines

    I: Greater trochanter

    A: Hip abduction and internal rotation

    Innervation: Inferior gluteal n.
  18. Gluteus Minimus
    O: Posterior ilium between middle and inferior gluteal lines

    I: Greater trochanter

    A: Hip abduction and internal rotation

    Innervation: Superior gluteal n.
  19. Tensor Fascia Latae
    O: Anterior Iliac Crest

    I: IT band

    A: Hip flexion, abduction, internal rotation (also knee extension)

    Innervation: Superior gluteal n.
  20. Name the 6 deep external rotators.
    • - Piriformus
    • - Quadratus Femoris
    • - Superior Gemellus
    • - Inferior Gemellus
    • - Obturator Internus
    • - Obterator Externus
  21. Pectineus
    O: Anterior Pubic Ramus

    I: Lesser trochanter, linear aspera

    A: Hip flexion, adduction, lateral rotation

    Innervation: Femoral n. (only adductor not supplied by the obdurator n.)
  22. Inguinal Ligament
    Separates the abdominal cavity from the lower leg. Makes up superior border of femoral triangle.
  23. What is the femoral triangle and what are the borders?
    The femoral triangle is the area in which all the blood supply to the lower leg passes.

    • - Inguinal ligament
    • - Sartorius
    • - Adductor longus