📖 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.
Biceps Brachii
Two-headed muscle of the anterior arm. Flexes elbow and supinates forearm.
Draft95%
Anatomy
- Origin
- Long head: supraglenoid tubercle; Short head: coracoid process of scapula
- Insertion
- Radial tuberosity, bicipital aponeurosis
- Action
- Elbow flexion, forearm supination, weak shoulder flexion
- Innervation
- Musculocutaneous nerve (C5, C6)
- Blood Supply
- Brachial artery
Movements (3)
| Movement | Joint | Role | Notes |
|---|---|---|---|
| Elbow Flexion | Humeroulnar Joint | Primary | Most active with forearm supinated |
| Forearm Supination | Proximal Radioulnar Joint | Primary | 52.1% activation during supination vs 5.1% during pronation [Bader 2018] |
| Shoulder Flexion | Glenohumeral Joint | Secondary | — |
Exercises (28)
| Exercise | Role |
|---|---|
| Chin-Up | Primary |
| Bicep Curl | Primary |
| Biceps Curl | Primary |
| Barbell Row | Secondary |
| Bent-Over Row | Secondary |
| Lat Pulldown | Secondary |
| Seated Cable Row | Secondary |
| Pull-Up | Secondary |
| Hammer Curl | Secondary |
| Forearm Pronation/Supination with Hammer | Secondary |
| Inverted Row | Secondary |
| Doorway Isometric Row | Secondary |
| Barbell Bench Press | Stabilizer |
| Chest Fly | Stabilizer |
| Goblet Squat | Stabilizer |
| Towel Row | Synergist |
| Low Row (Band/Cable) | Synergist |
| Pec Deck | Synergist |
| Face Pull | Synergist |
| Wall Push-Up | lengthening |
| Triceps Pushdown | lengthening |
| Resisted Forearm Pronation | lengthening |
| Tricep Extension (Overhead) | lengthening |
| Landmine Press | lengthening |
| Overhead Press (Seated) | lengthening |
| Push-Up Plus | lengthening |
| Skull Crusher (Lying Triceps Extension) | lengthening |
| Radial Nerve Glide | lengthening |
Sources
- Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation — Anatomy of Biceps Brachii — origin, insertion, action, innervation
- Muscles: Testing and Function with Posture and Pain — Manual muscle testing for Biceps Brachii