The Anatomy Lesson of Dr. Deijman (162164), is seen on the left, holding the top of the dead man's skull. The perspective of the corpse is depicted with exaggerated foreshortening to give the viewer a sense of standing in front of the dissection table, similar to the foreshortening in Mantegna's "Lamentation of Christ", which Rembrandt would have been familiar with through prints. The Anatomy Lesson of Dr. Deijman The Anatomy Lesson of Dr. Deijman (alternative spelling Deyman) is a 1656, fragmentary painting by Rembrandt, now in Amsterdam Museum. It is a group portrait showing a brain dissection by Dr. Jan Deijman (161966). Much of the canvas
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