The study of the human body was not isolated to only medical doctors and students, as many artists reflected their expertise through masterful drawings and paintings. The detailed study of human and animal anatomy, as well as the dissection of corpses, was utilized by early Italian renaissance man Leonardo da Vinci in an effort to more accurately depict the human figure through his work. He studied the anatomy from an exterior perspective as an apprentice under Andrea del Verrocchio that started in 1466. During his apprenticeship, Leonardo mastered drawing detailed versions of anatomical structures such as muscles and tendons by 1472.