Sciatic notch
Sciatic Notch
The Sciatic Notch (pronunciation: /saɪˈætɪk nɒtʃ/) is a significant anatomical feature found in the pelvis. It is a deep notch located on the posterior border of the hip bone, near the hip joint.
Etymology
The term "Sciatic Notch" is derived from the Latin word "sciaticus," referring to the sciatic nerve, and the English word "notch," which means a V-shaped cut. The sciatic nerve, the largest nerve in the human body, passes through this notch.
Anatomy
The Sciatic Notch is divided into two parts: the Greater Sciatic Notch and the Lesser Sciatic Notch. These notches are separated by the sacrospinous ligament and the sacrotuberous ligament.
The Greater Sciatic Notch is larger and situated superiorly, while the Lesser Sciatic Notch is smaller and located inferiorly.
Clinical Significance
The Sciatic Notch is clinically significant as it allows passage for the sciatic nerve, pudendal nerve, and several other neurovascular structures. Any impingement or compression in this area can lead to conditions like sciatica, characterized by pain, numbness, or weakness in the lower extremities.
Related Terms
- Sciatica
- Hip bone
- Greater Sciatic Notch
- Lesser Sciatic Notch
- Sacrospinous ligament
- Sacrotuberous ligament
- Pudendal nerve
External links
- Medical encyclopedia article on Sciatic notch
- Wikipedia's article - Sciatic notch
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