📖 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.
Triceps Brachii
Three-headed muscle of the posterior arm. Primary elbow extensor.
Draft95%
Anatomy
- Origin
- Long head: infraglenoid tubercle; Lateral head: posterior humerus (above radial groove); Medial head: posterior humerus (below radial groove)
- Insertion
- Olecranon process of ulna
- Action
- Elbow extension; long head assists shoulder extension
- Innervation
- Radial nerve (C6, C7, C8)
- Blood Supply
- Deep brachial artery, posterior circumflex humeral artery
Movements (2)
| Movement | Joint | Role | Notes |
|---|---|---|---|
| Elbow Extension | Humeroulnar Joint | Primary | — |
| Shoulder Extension | Glenohumeral Joint | Secondary | Long head |
Exercises (28)
| Exercise | Role |
|---|---|
| Downward Dog (Adho Mukha Svanasana) | Primary |
| Prone Press-Up (McKenzie) | Primary |
| Chair Triceps Dip | Primary |
| Countertop Incline Push-Up | Primary |
| Dip | Primary |
| Tricep Extension (Overhead) | Primary |
| Triceps Pushdown | Primary |
| Skull Crusher (Lying Triceps Extension) | Primary |
| Bear Crawl | Primary |
| Barbell Bench Press | Secondary |
| Overhead Press (Seated) | Secondary |
| Dumbbell Bench Press | Secondary |
| Dumbbell Shoulder Press | Secondary |
| Wall Push-Up | Secondary |
| Burpee | Secondary |
| Push-Up Plus | Secondary |
| Landmine Press | Secondary |
| Cobra Pose | Secondary |
| Chin-Up | Stabilizer |
| Mountain Climber | Stabilizer |
| Lat Pulldown | Synergist |
| Pull-Up | Synergist |
| Ulnar Nerve Glide | lengthening |
| Biceps Curl | lengthening |
| Hammer Curl | lengthening |
| Doorway Lat Stretch | lengthening |
| Bicep Curl | lengthening |
| Inverted Row | lengthening |
Sources
- Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation — Anatomy of Triceps Brachii — origin, insertion, action, innervation
- Muscles: Testing and Function with Posture and Pain — Manual muscle testing for Triceps Brachii