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Wednesday January 7, 2009
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Muscles of the Lower Extremity / Adductor Magnus
Page: 1
| Origin |
Inferior pubic ramus, ischial ramus, and inferolateral area of ischial tuberosity |
| Insertion |
Gluteal tuberosity of femur, medial lip of linea aspera, medial supracondylar ridge, and adductor tubercle |
| Action |
Powerful thigh adductor; superior horizontal fibers also help flex the thigh, while vertical fibers help extend the thigh |
| Innervation |
Posterior division of obturator nerve innervates most of the adductor magnus; vertical or hamstring portion innervated by tibial nerve |
Arterial
Supply |
Medial circumflex femoral artery, inferior gluteal artery, 1st - 4th perforating arteries, obturator artery, and some superior muscular branches of popliteal artery |
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