human muscular system

abdominis adductor anatomical anatomy anterior arm biceps biology body brachii brachioradialis deltoid female femoris fitness flat gastrocnemius gluteus gym human illustration intermedius lateralis longus male man medialis medical medius muscle muscular outline pectoralis pronator rectus sartorius science serratus simple soleus sternocleidomastoid system teres tibialis trapezius triceps vastus view woman