A mannequin (also called a mannequins, dummy, lay figure or dress form) is an often articulated doll used by artists, tailors, dressmakers, window dressers and others especially to display or fit clothing. The term is also used for life-sized dolls with simulated airways used in the teaching of first aid, CPR, and advanced airway management skills such as tracheal incubation and for human figures used in computer simulation to model the behavior of the human body.