Figure sacroiliac joint

1. Sacrum-iliac joint
   (Sacroiliac joint, abbreviated ISG)
   Articulatio sacroiliaca
2. Iliac bone -
   Os ilium
3. Sacrum -
   Sacrum
4. Anterior sacrum-iliac bone
   -Tape -
   Lig. Sacroiliacum anterius
5. Fifth lumbar vertebra -
   Vertebra lumbalis V
6. Fourth lumbar vertebra -
   Vertebra lumbalis IV
7. Tailbone -
   Os coccyxis
8. Pubic bone -
   Pubis
9. Femoral shaft -
   Corpus femoris
10. Lumbar cruciate ligament kink -
    Promontory

You can find an overview of all Dr-Gumpert images at: medical illustrations

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