Pectoralis major serratus anterior deltoid pectoralus minor rectus abdominis external oblique internal oblique transverse abdominis trapezius latissimus dorsi infraspinatus teres major teres minor lavatory scapulae supraspinatus rhomboid major and minor triceps brachii with lateral, long, medial head biceps brachii with heads brachialis aponneuroses linea alba origin insertion prime mover/agonists action of muscle antagonists synergist fixator deep fascia tendon ligament subscapularis Innervation external intercoastals internal intercostals anconeus flexor carpi radialis palmaris longus flexor carpi ulnaris flexor digitorum superficialis flexor pollicis longus flexor digitorum profundus extensor carpi radialis longus extensor carpi radialis brevis extensor digitorum extensor carpi ulnaris gluteus maximus adductor magnus gracilis biceps femoris semitendinosus semimembranosus adductor brevis adductor longus rectus sheath semi lunar line peritoneum spermatic cord spermatic fascica oblique aponeurosis cremaster muscle external and internal inguineal ring inguineal ligament inguineal canal ductud deferens internal external and transverse intercostal muscles anterios – flexors posterior- extensors supinator pronator abductor pollicis flexor retinaclum