A collection of illustrations of the heart by Arthur Keith, and his work with James Mackenzie on the pathophysiology of the heart 1903-1908.

The University of Manchester Museum of Medicine and Health holds of collection of drawings of human hearts by anatomist Sir Arthur Keith (1866-1955). The specimens were provided by the cardiologist, Sir James Mackenzie (1853-1925) who was using a polygraph to investigate patients with cardiac arrhythmias. Keith's dissections helped to establish the anatomy and pathology of the atrioventricular conduction system and assisted Mackenzie to interpret his polygraph recordings and understand the origin of cardiac arrythmias.