Structure of the human body, especially the bones and muscles, it is a subject of much focus in academic figurative painting and sculpture. In the late-19th and early-20th centuries, much controversy arose over whether women should be allowed in classes with male nude models and whether male and female students should share a classroom with a posed nude model. Today most art schools have all classes coeducational.Source: Kimberley Reynolds and Richard Seddon, "Illustrated Dictionary of Art Terms"; <br><br>The study of body structure, whether human or animal, including the bones, the muscles, and all the other parts. Knowledge of anatomy is important to drawing and sculpting human and animal figures well.