📖 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.
Sartorius
Longest muscle in the body. Crosses both hip and knee. Part of pes anserinus at its insertion.
Draft95%
Anatomy
- Origin
- Anterior superior iliac spine
- Insertion
- Medial surface of proximal tibia (pes anserinus)
- Action
- Hip flexion, hip external rotation, hip abduction; knee flexion
- Innervation
- Femoral nerve (L2-L3); typically 2 branches
- Blood Supply
- Multiple vascular pedicles (average 6-7) from femoral artery
Movements (4)
| Movement | Joint | Role | Notes |
|---|---|---|---|
| Hip Flexion | Hip Joint (Coxofemoral) | Secondary | — |
| Hip External Rotation | Hip Joint (Coxofemoral) | Secondary | — |
| Knee Flexion | Tibiofemoral Joint | Secondary | — |
| Knee Internal Rotation | Tibiofemoral Joint | Secondary | Moment arm at 30° flexion: 8.2-14.1 mm |
Exercises (5)
| Exercise | Role |
|---|---|
| Standing Hip Circles | Secondary |
| Leg Curl | Synergist |
| Hanging Leg Raise | Synergist |
| Active Anterior Pelvic Tilt | Synergist |
| Standing Quad Stretch | lengthening |
Sources
- Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation — Anatomy of Sartorius — origin, insertion, action, innervation
- Muscles: Testing and Function with Posture and Pain — Manual muscle testing for Sartorius