📖 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.
Cervical Flexion
Cervical Intervertebral Joints (C2-C7) • Cervical Spine • sagittal plane
Bending the neck forward, bringing the chin toward the chest. Combined motion of C2-C7.
Axis: medial-lateral
Normal Range of Motion
Whole-cervical flexion from neutral using universal goniometer per AAOS/Norkin & White (0-45 deg; some report 0-50 deg). Composite cervical motion, not isolated to C2-C7. CROM and AMA sources report up to 0-50-60 deg.
Source: AAOS Joint Motion: Method of Measuring and Recording
Muscles (3)
| Muscle | Role | Notes |
|---|---|---|
| Sternocleidomastoid | Primary | Bilateral action |
| Deep Cervical Flexors | Primary | Segmental control |
| Scalene Muscles | Secondary | Anterior scalene |
Exercises (4)
Sources
- Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation — Biomechanics of Cervical Flexion