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Musculoskeletal
Muscle Actions
| Action | Muscles |
|---|---|
| TMJ Depression | Lateral pterygoid, suprahyoid, infrahyoid |
| TMJ Elevation | Temporalis, masseter, Medial pterygoid |
| TMJ Protrusion | Masseter, lateral pterygoid, medial pterygoid |
| TMJ Retrusion | Temporalis, Masseter, Digastric |
| TMJ Side to side | Medial pterygoid, Lateral pterygoid, Masseter, Temporalis |
| Cervical Flexion | SCM, Longus colli, Scalenes |
| Cervical Extension | Traps, Splenius cervicis, Semispinalis cervicis, Iliocostalis cervicis, Longissimus cervicis, Multifidus |
| Cervical Rotation and Lateral Bending | SCM, Scalenes, Splenius cervicis, Longissimus cervicis, Iliocostalis cervicis, Levator scapulae, Multifidus |
| Thoracic and Lumbar Flexion | Rectus abdominis, Internal oblique, External oblique |
| Thoracic and Lumbar Extension | Erector spinae, Quadratus lumborum, Multifidus |
| Thoracic and Lumbar Rotation and Lateral Bending | Psoas major, Quadratus lumborum, External oblique, Internal Oblique, Multifidus, Longissimus thoracis, Iliocostalis thoracis, Rotatores |
| Scapular Elevation | Upper traps, Levator scapulae |
| Scapular Depression | Lower traps, Lats, Pecs major and minor |
| Scapular Protraction | Serratus anterior, Pecs minor |
| Scapular Retraction | Rhomboids, Traps |
| Scapular Upward Rotation | Traps, Serratus anterior |
| Scapular Downward Rotation | Rhomboids, Levator scapulae, Pecs minor |
| Shoulder Flexion | Biceps brachii, Anterior delts, Coracobrachialis, Pecs major |
| Shoulder Extension | Lats, Posterior delts, Teres major |
| Shoulder Abduction | Middle delts, Supraspinatus |
| Shoulder Adduction | Pecs major, Lats, Teres major |
| Shoulder Lateral Rotation | Teres minor, Posterior delts, Infraspinatus |
| Shoulder Medial Rotation | Teres major, Pecs major, Subscapularis, Lats, Anterior delts |
| Elbow Flexion | Biceps brachii, Brachioradialis, Brachialis |
| Elbow Extension | Triceps, Anconeus |
| Radioulnar Supination | Supinator, Biceps brachii |
| Radioulnar Pronation | Pronator teres, Pronator quadratus |
| Wrist Flexion | Flexor carpi radialis, Flexor carpi ulnaris, Palmaris longus |
| Wrist Extension | Extensor carpi radialis longus and brevis, Extensor carpi ulnaris |
| Radial Deviation | Extensor carpi radialis, Flexor carpi radialis, Extensor pollicis longus and brevis |
| Ulnar Deviation | Flexor carpi ulnaris, Extensor carpi ulnaris |
| Hip Flexion | Iliopsoas, Sartorius, Rectus femoris, Pectineus |
| Hip Extension | Gluteus maximus, Biceps femoris, Semitendinosus, Semimembranosus |
| Hip Abduction | TFL, Gluteus medius, Gluteus minimus, Piriformis, Obturator internus |
| Hip Adduction | Gracilis, Adductor longus, Adductor brevis, Adductor magnus |
| Hip Medial Rotation | TFL, Gluteus medius, Gluteus minimus, Pectineus, Adductor longus |
| Hip Lateral Rotation | Gluteus maximus, Obturator externus, Obturator internus, Piriformis, Gemelli, Sartorius |
| Knee Flexion | Biceps fermoris, Semitendinosus, Semimembranosus, Sartorius |
| Knee Extension | Rectus femoris, Vastus lateralis, Vastus medialis, Vastus intermedius |
| Plantar Flexion | Gastrocnemius, Soleus, Tibialis posterior, Peroneus longus, Peroneus brevis, Plantaris, Flexor hallucis |
| Dorsiflexion | Tibialis anterior, Extensor hallucis longus, Extensor digitorum longus, Peroneus tertius |
| Ankle Inversion | Tibialis anterior, Tibialis posterior, Flexor digitorum longus |
| Ankle Eversion | Peroneus longus, Peroneus brevis, Peroneus tertius |