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Principal Muscles 3
Muscles and their Origin
| Muscle | Origin |
|---|---|
| Frontal | Occipital bone |
| Orbicularis oculi | Maxilla and frontal bone (encircles eye) |
| Orbicularis orbis | Encircles lips |
| Zygomaticus | Zygomatic |
| Masseter | Zygomatic arch |
| Temporal | Temporal region of the skull |
| Sternocleidomastoid | Sternum and clavicle |
| Trapezius | Skull and upper vertebrae |
| Pectoralis major | Sternum, clavicle, and upper rib cartilages |
| Latissimus dorsi | Vertebrae and ilium |
| Deltoid | Clavicle and scapula |
| Biceps brachii | Scapula |
| Triceps brachii | Scapula and humerus |
| External oblique | Lower thoracic cage |
| Internal oblique | Pelvis |
| Transversus abdominis | Ribs, vertebrae and pelvis |
| Rectus abdominis | Pubis |
| Iliopsoas | Ilium and vertebrae |
| Sartorius | Ilium |
| Gluteus Maximus | Ilium, sacrum, coccyx |
| Adductor longus | Pubis |
| Gracilis | Pubis |
| Pectineus | Pubis |
| Semimembranosus | Ischium |
| Semitendinosus | Ischium |
| Biceps femoris | Ischium and femur |
| Rectus femoris | Ilium |
| Vastus lateralis, intermedius, and medialis | Femur |
| TIBIALIS ANTERIOR | Tibia |
| GASTROCNEMIUS | Tibia and fibula |
| SOLEUS | Tibia and fibula |
| Peroneus longus | Tibia and fibula and brevis |