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Internal Obturator
From WikiMSK
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| |
| Internal Obturator | |
|---|---|
| Muscle Type | |
| Origin | Inner surface of obturator membrane and rim of pubis and ischium bordering membrane |
| Insertion | Middle part of medial aspect of greater trochanter of femur |
| Action | Abducts & externally rotates the extended hip and abducts the flexed thigh at the hip, and stabilises the hip during walking |
| Synergists | |
| Antagonists | |
| Spinal innervation | |
| Peripheral Innervation | |
| Vasculature | Inferior gluteal artery |
Sacral Plexus Images
Sacral Plexus
Superior gluteal nerve
Inferior gluteal nerve
Nerve to piriformis
Sciatic nerve
Nerve to quadratus and inferior glemellus
Nerve to obturator internus and superior gemellus
Posterior femoral cutaneous nerve
Perforating cutaneous nerve
Pudendal nerve
Nerves to perineum and levator ani
