The indentation on the edge for the sciatic nerve to pass is which notch?

The indentation on the edge for the sciatic nerve to pass is which notch?

• A. Lesser sciatic notch
• B. Ischial spine
• C. Greater sciatic notch
• D. Intervertebral foramen

Answer: (C)

The notch that matters here is the greater sciatic notch. This indentation on the edge of the pelvic bone forms, with ligaments, the greater sciatic foramen through which the sciatic nerve exits the pelvis and travels down the posterior thigh. The lesser sciatic notch is a different groove located below the ischial spine and is involved with other structures, not the sciatic nerve exiting the pelvis. The intervertebral foramen is the opening between adjacent vertebrae for nerve roots, not where the sciatic nerve passes in the pelvis. So, the notch that allows the sciatic nerve to pass is the greater sciatic notch.

The notch that matters here is the greater sciatic notch. This indentation on the edge of the pelvic bone forms, with ligaments, the greater sciatic foramen through which the sciatic nerve exits the pelvis and travels down the posterior thigh. The lesser sciatic notch is a different groove located below the ischial spine and is involved with other structures, not the sciatic nerve exiting the pelvis. The intervertebral foramen is the opening between adjacent vertebrae for nerve roots, not where the sciatic nerve passes in the pelvis. So, the notch that allows the sciatic nerve to pass is the greater sciatic notch.