Connection lost. Please refresh the page.
Online
Get help How to study Login Register
Ready to learn?
Pick your favorite study tool

Ischial spine

Recommended video: Hip bone and femur [18:00]
Bones, ligaments and joints of the hip bone and femur.

The ischial spine is a sharp bony prominence found on the ramus of the ischium. It sits between the greater and lesser sciatic notches, at the level of the lower border of the acetabulum.

The ischial spine provides an attachment point for the sacrospinous ligament and some fibers of the superior gemellus muscle which originate from the upper margin of the lesser sciatic notch.

In addition, the posterior fibers of the levator ani, specifically the posterolateral fibers of the iliococcygeus muscle, as well as the apex of the coccygeus muscle both arise from the pelvic surface of the ischial spine.

It is worth noting that the internal pudendal vessels and pudendal nerve wind around the dorsal aspect of the ischial spine before entering the perineum.

Terminology English: Ischial spine
Latin
: Spina ischiadica
Definition Sharp bony projection found on the posterior aspect of the ischium, between the greater and lesser sciatic notches.
Function Attachment point for sacrospinous ligament, iliococcygeus muscle, coccygeus muscle, superior gemellus muscle

Learn more about the bony landmarks of the hip bone in the following study unit:

Ischial spine: want to learn more about it?

Our engaging videos, interactive quizzes, in-depth articles and HD atlas are here to get you top results faster.

What do you prefer to learn with?

“I would honestly say that Kenhub cut my study time in half.” – Read more.

Kim Bengochea, Regis University, Denver
© Unless stated otherwise, all content, including illustrations are exclusive property of Kenhub GmbH, and are protected by German and international copyright laws. All rights reserved.

Register now and grab your free ultimate anatomy study guide!