Origin External surface of obturator membrane and anterior bony margins of obturator foramen Insertion Trochanteric fossa on the medial surface of the greater trochanter Action Rotates the thigh laterally; also helps adduct thigh Innervation Posterior division of obturator nerve innervates most of the obturator externus; (L3, L4) Arterial Supply Obturator and medial circumflex femoral arteries
Upgrade to View Premium Videos Upgrade to View Premium Videos Muscles of the Thigh and Gluteal Lateral Rotators Animated Anatomy Animated Anatomy Basem Attum (OB Team Editor) General - Obturator externus 6/5/2015 3050 views