Ischial spine | |
---|---|
![]() Capsule of
hip-joint (distended). Posterior aspect. (Spine of ischium labeled at upper left.) | |
![]() Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis. (Spine of ischium labeled at center left.) | |
Details | |
Identifiers | |
Latin | spina ischiadica spina ischiaca spina ischialis |
TA98 | A02.5.01.205 |
TA2 | 1343 |
FMA | 17028 |
Anatomical terms of bone |
The ischial spine is part of the posterior border of the body of the ischium bone of the pelvis. It is a thin and pointed triangular eminence, more or less elongated in different subjects.
Part | Attachment |
---|---|
external surface | gemellus superior muscle [1] |
internal surface | coccygeus muscle, [2] levator ani muscle, pelvic fascia |
pointed extremity | sacrospinous ligament |
The pudendal nerve travels close to the ischial spine. [3]
The ischial spine can serve as a landmark in pudendal anesthesia, as the pudendal nerve lies close to the ischial spine. [3] [4]
This article incorporates text in the
public domain from
page 235 of the 20th edition of
Gray's Anatomy (1918)
Ischial spine | |
---|---|
![]() Capsule of
hip-joint (distended). Posterior aspect. (Spine of ischium labeled at upper left.) | |
![]() Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis. (Spine of ischium labeled at center left.) | |
Details | |
Identifiers | |
Latin | spina ischiadica spina ischiaca spina ischialis |
TA98 | A02.5.01.205 |
TA2 | 1343 |
FMA | 17028 |
Anatomical terms of bone |
The ischial spine is part of the posterior border of the body of the ischium bone of the pelvis. It is a thin and pointed triangular eminence, more or less elongated in different subjects.
Part | Attachment |
---|---|
external surface | gemellus superior muscle [1] |
internal surface | coccygeus muscle, [2] levator ani muscle, pelvic fascia |
pointed extremity | sacrospinous ligament |
The pudendal nerve travels close to the ischial spine. [3]
The ischial spine can serve as a landmark in pudendal anesthesia, as the pudendal nerve lies close to the ischial spine. [3] [4]
This article incorporates text in the
public domain from
page 235 of the 20th edition of
Gray's Anatomy (1918)