Posterior gluteal line
Linea glutea posterior
Definition
The posterior gluteal line (a.k.a. superior curved line) is a bony ridge located on the external or gluteal surface of the ala of the ilium. It is the shortest among all the gluteal lines and starts from the posterior portion of the iliac crest, a few centimeters ahead of the posterior superior iliac spine. Initially, It is clearly defined, but as it descends towards the upper part of the greater sciatic notch, where it terminates, it becomes less distinct and sometimes disappears completely. Behind this line is a narrow semilunar surface. The upper part of this surface is rough and serves as the origin for a section of the gluteus maximus muscle. The lower part is smooth and lacks any muscular attachments.
References
______________________________________________________________________________
Text revised by Muhammad A. Javaid, MD, PhD © 2023 IMAIOS.
Standring, S. and Gray, H. (2016). ‘Chapter 80: Pelvic girdle, gluteal region and thigh’ in Gray’s anatomy The anatomical Basis of Clinical Practice. (41st ed.) New York: Elsevier, pp. 1339-1344.
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918–from http://www.bartleby.com/107/).
