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Muscle Attachment Chart Table Muscle Origin Insertion Action_____________________________ Sternocleidomastoid Erector spinae (group) sternum/clavicle --- temporal bone --- rotates/flexes head extends spine Trapezius occipital bone cervical/thoracic vertebrae thoracic vertebrae upper ribs clavicle, spine, scapula elevates/rotates scapula scapula scapula adducts scapula pulls scapula anterior/downward clavicle, sternum upper ribs vertebrae, iliac crest, upper ribs scapula and clavicle humerus adducts shoulder humerus extends shoulder humerus abducts shoulder scapula scapula scapula scapula humerus humerus humerus humerus abducts shoulder internally rotates shoulder externally rotates shoulder externally rotates shoulder Biceps brachii Brachialis Brachioradialis Triceps brachii Supinator Pronator teres scapula humerus humerus scapula, humerus humerus, ulna humerus, ulna radius ulna radius ulna radius radius flexes elbow flexes elbow flexes elbow extends elbow supinates forearm pronates forearm Wrist flexors mostly humerus hand flex wrist and hand Rhomboideus major Serratus anterior Pectoralis major Latissimus dorsi Deltoid Rotator cuff Supraspinatus Subscapularis Infraspinatus Teres minor Flexor carpi radialis Flexor carpi ulnaris Palmaris longus Flexor digitorum profundus Flexor digitorum superficialis Wrist extensors humerus Extensor carpi radialis longus Extensor carpi radialis brevis Extensor carpi ulnaris Extensor digitorum hand extend wrist and hand Abdominals External oblique Internal oblique Transversus abdominis Rectus abdominis ------pelvic bone ------sternum, lower ribs compresses abdominal wall compresses abdominal wall compresses abdominal wall flexes trunk/compresses abdominal wall Psoas major Iliacus Gluteus maximus Gluteus medius Gluteus minimus Adductor longus Adductor magnus Adductor brevis Tensor fasciae latae Gracilis lumbar vertebrae pelvic bone sacrum, coccyx, pelvic bone pelvic bone pelvic bone pelvic bone pelvic bone pelvic bone pelvic bone pelvic bone femur femur femur femur femur femur femur femur fascia of thigh tibia flexes hip flexes hip extends hip abducts hip abducts hip adducts hip adducts hip adducts hip abducts, flexes, medially rotates hip adducts hip, flexes knee Hamstrings Biceps femoris Semitendinosus pelvic bone, femur pelvic bone fibula tibia flexes knee flexes knee Semimembranosus Quadriceps Rectus femoris Vastus lateralis Vastus medialis Vastus intermedius pelvic bone tibia flexes knee pelvic bone femur femur femur tibia tibia tibia tibia extends knee extends knee extends knee extends knee Sartorius pelvic bone tibia flexes, abducts, laterally rotates hip Tibialis anterior Tibialis posterior Gastrocnemius Soleus Fibularis tertius Fibularis longus Fibularis brevis tibia tibia, fibula femur tibia, fibula fibula tibia, fibula fibula foot foot calcaneus (Achilles tendon) calcaneus (Achilles tendon) foot foot foot dorsiflexes ankle/invertes subtalar joint plantarflexes ankle/invertes subtalar joint plantarflexes ankle plantarflexes ankle everts subtalar joint everts subtalar joint everts subtalar joint