📖 Static demo — read-only snapshot
You’re browsing a static build of the Body IQ knowledge graph, so everything loads with no backend. A few things that need the live server are turned off here:
- Global search (sidebar) is disabled — it queries the API.
- The JSON API and the API “Try it” playgroundaren’t included.
- The data is a snapshot — it refreshes only when the demo is rebuilt, not live from the database.
Everything else — the body map, progression ladders, coverage heatmap, exercise finder, and all anatomy/exercise/source pages — works fully. The full app (live search + API + database) runs from the source on GitHub.
Obturator Internus
Deep external rotator forming a functional complex with the gemelli. Tendon exits pelvis through lesser sciatic foramen and makes a sharp turn.
Draft95%
Anatomy
- Origin
- Inner surface of obturator membrane and surrounding pelvic bone
- Insertion
- Medial surface of greater trochanter (forms continuum with gemelli)
- Action
- External rotation, hip stabilization
- Innervation
- Nerve to obturator internus (L5-S2)
- Blood Supply
- Internal pudendal artery, obturator artery
Movements (1)
| Movement | Joint | Role | Notes |
|---|---|---|---|
| Hip External Rotation | Hip Joint (Coxofemoral) | Primary | — |
Exercises (6)
| Exercise | Role |
|---|---|
| Pigeon Stretch (Modified) | Secondary |
| Standing Hip Circles | Synergist |
| 90/90 Hip Internal Rotation Stretch | lengthening |
| Seated Figure-4 Stretch | lengthening |
| Standing Figure-4 Stretch | lengthening |
| Seated Hip Internal Rotation | lengthening |
Sources
- Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation — Anatomy of Obturator Internus — origin, insertion, action, innervation
- Muscles: Testing and Function with Posture and Pain — Manual muscle testing for Obturator Internus