Obturator Internus

Nov 22, 2021 | Muscle

Origin

Pelvic surface of obturator membrane and surrounding bones (ilium, ischium, pubis)

Insertion

Common tendon with superior and inferior gemelli to medial surface of upper border of greater trochanter

Actions

Laterally rotates thigh

Nerve

Nerve from sacral plexus (L5, S1)

Note

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