Origin
Spine of ischium
Insertion
With tendon of obturator internus into medial surface of upper border of greater trochanter
Actions
Laterally rotates thigh
Nerve
Branch of nerve to obturator internus from sacral plexus (L5, S1)
Note
Spine of ischium
With tendon of obturator internus into medial surface of upper border of greater trochanter
Laterally rotates thigh
Branch of nerve to obturator internus from sacral plexus (L5, S1)
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