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Anatomy muscle
functions and names
| Term | Definition |
|---|---|
| Orbicularis oris | close mouth |
| Orbicularis oculi | close eye |
| Buccinator | compress cheeks |
| Masseter | elevate mandible |
| Lateral & Medial Pterygoid | grinding |
| Temporalis | elevate mandible |
| Levator labii superioris | elevate upper lip |
| Depressor anguli oris | depress corners of mouth |
| Depressor labii inferioris | depress lower lip |
| Sternocleidomastoid | rotates head, flexes neck, elevates sternum |
| Scalenes | elevates ribcage |
| Trapezius | rotates scapula |
| Rhomboideus | elevates and adducts scapula |
| Levator Scapulae | elevates scapula |
| Serratus anterior | pulls scapula anteriorly and downward |
| Internal intercostal | depresses ribs |
| External intercostal | elevates ribs |
| Pectoralis Major | Flexes, adducts, and rotates arm medially |
| Teres Major | Extension, adducts, and rotates arm medially |
| Latissimus dorsi | extension, adducts, and rotates arm medially |
| Deltoid | abducts, extends, and flexes arm |
| Supraspinatus | abducts arm |
| Teres minor | rotates arm laterally |
| Biceps brachii | flexes forearm |
| Triceps brachii | extends forearm |
| Supinator | supinates(laterally rotates) forearm |
| Pronator Teres | pronates(medially rotates) forearm |
| Palmaris longus | flexes hand |
| Extensor digitorum | extends & hyperextends digits |
| Erector spinae | posture (extend vertebral column) |
| Rectus abdominus | compresses abdominal region - flexes vertebral column |
| External & Internal Oblique | compresses abdominal region |
| Transverse abdominus | compresses abdominal region |
| Psoas major | flexes thigh |
| Iliacus | flexes thigh |
| Gluteus Maximus | extends thigh |
| Adductor (longus & magnus) | adducts leg |
| Gracilis | adducts leg |
| Hamstring group | flexes leg includes: semimembranosis, semitendinosus, biceps femoris, and sartorius |
| Quadriceps | extends leg includes: Rectus femoris, Vastus lateralis, Vastus medialis, Vastus intermedialis |
| Sartorius | rotates leg laterally |
| Tibialis anterior | dorsiflexion/ inversion |
| Gastrocnemius | plantar flexion |
| Soleus | plantar flexion |
| Fibularis longus | plantar flexion/ eversion |