Recto: a study of a man from the shoulder down, facing the spectator, with legs apart, and the left arm not shown, showing leg muscles; the shoulder and extended right arm; notes on the drawings. Verso: a man in profile to the right, from neck to shin, showing the superficial muscles; a man's right leg, showing the superficial muscles of the thigh; numerous small studies, diagrams and notes on the drawings. Leonardo’s most brilliant and sustained scientific pursuit was his study of human anatomy. He made hundreds of drawings from corpses that he had dissected in monastery hospitals, recording many anatomical structures for the first time in medical history. In this study Leonardo explores the superficial muscles of the body. RL 19014r