The obturator foramen is the large, bilaterally paired opening of the bony pelvis, formed by the pubis and ischium. It's a significant anatomical feature in the pelvic region.
Details of the Obturator Foramen
Here's a breakdown of key aspects:
- Location: Found on each side of the pelvic bone.
- Formation: The pubis and ischium bones come together to create this opening.
- Closure: Most of the foramen is covered by the obturator membrane.
- Obturator Canal: A small opening in the membrane, called the obturator canal, allows passage for the obturator nerve and blood vessels.
Functionality
| Feature | Description |
|---|---|
| Main Opening | Large opening created by the ischium and pubis bones. |
| Obturator Membrane | Covers the foramen almost entirely, providing attachment points for muscles. |
| Obturator Canal | Allows passage of the obturator nerve and blood vessels into the thigh. |
Clinical Significance
Understanding the anatomy of the obturator foramen and associated structures is crucial in various medical fields, including:
- Surgery: Surgeons must be aware of the location of the obturator nerve and vessels during procedures in the pelvic region.
- Orthopedics: Injuries or fractures of the pelvis can affect the obturator foramen and surrounding structures.
- Neurology: Obturator nerve entrapment can cause pain and weakness in the leg.
