Exploration of gluteal region and hip |
Obturator internus and quadratus femoris muscles, posterior view |
The piriformis and the gluteal muscles have been cut away. The sciatic nerve has been cut off close to the greater sciatic foramen. |
1
.
| Origin of gluteus medius muscle | 2
.
| Piriform muscle | 3
.
| Sciatic nerve | 4
.
| Body of ischium | 5
.
| Greater trochanter | 6
.
| Quadratus femoris muscle | 7
.
| Obturator externus muscle | 8
.
| Gemelli muscles | 9
.
| Obturator internus muscle | 10
.
| Ischial tuberosity | 11
.
| External anal sphincter muscle | 12
.
| Anus | 13
.
| Posterior superior iliac spine | 14
.
| Sacral bone | 15
.
| Dorsal branch of S. II | 16
.
| Dorsal foramen S. III | 17
.
| Coccyx bone | 18
.
| Anococcygeal nerve | 19
.
| Levator ani muscle |
|