Human Anatomy: Muscle Groups |
Muscle Function & Other Pertinent Medical Information | |
- PIRIFORMIS - | |
ORIGIN: | 2, 3, 4 costotransverse bars of anterior sacrum, few fibers from superior border of greater sciatic notch |
INSERTION: | Anterior part of medial aspect of greater trochanter of femur |
ACTION: | laterally rotates and stabilizes hip |
NERVE: | Anterior primary rami of S1, 2 |