Neck platysma muscles, trapezius muscles Shoulder deltoid muscles Biceps biceps brachii muscles, brachialis muscles Triceps long, lateral, and medial forearms pronator teres muscles, brachioradialis muscles, flexor carpi radialis muscles, extensor carpi radialis muscles, palmaris longus muscles, flexor carpi ulnaris muscles, flexor digitorum superficialis muscles Wrists and Hands flexor retinaculum, abductor digiti minimi, flexor digiti minimi, lumbrical muscle, adductor pollicis, opponens pollicis, flexor pollicis bevis Inner thigh and Hip gracilis, adductor longus, pectineus, iliopsoas, tensor fasciae latae Front of upper leg sartorius, rectus femoris, vastus medialis, vastus lateralis Lower leg ( calf ) gastrocnemius, soleus, tibialis anterior, peroneus longus, extensor digitorum longus, peroneus brevis, Back latissimus dorsi, teres major Back of upper leg ( hamstring area ) adductor magnus, semitendinosis, biceps femoris (long), biceps femoris (short), plantaris, gluteus maximus, semimembranosus