The Anatomy Lesson of Dr. Nicolaes Tulp central figures (in this case, Dr. Tulp) probably paid more, even twice as much. Rembrandt's anatomical portrait radically altered the conventions of the genre, by including a full length corpse in the center of the image (using Christ-like iconography) and creating not just a portrait but a dramatic Mise-en-scène. Rembrandt's image is a fiction; in a typical anatomy lesson, the surgeon would begin by opening the chest cavity and thorax because the internal organs there decay most rapidly. One person is missing: the Preparator, whose task was to prepare the body for the lesson. In the 17th century an important
Nicolaes Tulp the condition we know as migraine, the devastating effects of tobacco smoking on the lungs, and reveals an understanding of human psychology in a description of the placebo effect. Tulp also discovered the ileocecal valve at the junction of the large and small intestines, still known as Tulp's valve. While Tulp made observations of various diseases, treatment often continued in the age-old way. His description of the symptoms of Beriberi in a Dutch seaman, for example, went unnoticed until the cause (vitamin B1 deficiency) was recognized two hundred years later by Christiaan Eijkman. Partially as a result of the success