Greater Sciatic Notch
Definition
The posterior notch on the ilium between the posterior inferior iliac spine and the ischial spine. Narrow and V-shaped in males; wide and U-shaped in females. Scored on Walker 2005 five-point ordinal scale.
Related terms
- Klales 2012 Revision
- An ordinal revision of the Phenice method by Ashley Klales using a 1-5 scale for each trait and a logistic regression to...
- Obstetric Trade-Off
- The evolutionary conflict in humans between the biomechanical benefit of a narrow pelvis for efficient bipedal locomotion and the obstetric requirement for...
- Phenice Method
- A non-metric morphological sex estimation technique published by Thomas Phenice in 1969, based on scoring three traits of the pubic bone: the...
- Pre-Auricular Sulcus
- A groove anterior to the auricular surface of the ilium, associated with parturition stress at the sacroiliac joint. Present in 58-70 per...
- Sub-Pubic Angle
- The angle at the inferior apex of the pubic arch where the two inferior pubic rami meet. Acute (below 90 degrees) in...
- Sub-Pubic Concavity
- A medial inward curve on the inferior aspect of the ischiopubic ramus in females, resulting from the wider sub-pubic space. Absent (straight...
- Terry Collection
- A documented skeletal collection at the Smithsonian National Museum of Natural History (Washington DC), assembled from cadavers donated to Washington University's anatomy...
- Ventral Arc
- An elevated ridge on the anterior (ventral) surface of the pubic bone, curving from the pubic symphysis toward the ischiopubic ramus. Present...
- Walker 2005 Scale
- A five-point ordinal scoring system for the greater sciatic notch published by Philip Walker, ranging from 1 (very narrow, most male) to...
Explained in
- Sex Estimation from the Pelvis: Phenice, Sciatic Notch and Sub-Pubic AngleThe posterior notch on the ilium between the posterior inferior iliac spine and the ischial spine. Narrow and V-shaped in males; wide and U-shaped in females....