Human Anatomy: Muscle Groups |
Muscle Function & Other Pertinent Medical Information | |
- OBTURATOR EXTERNUS - | |
ORIGIN: | Outer obturator membrane , rim of pubis and ischium bordering it |
INSERTION: | Trochanteric fossa on medial surface of greater trochanter |
ACTION: | laterally rotates hip |
NERVE: | Posterior division of obturator nerve (L2,3,4) |