Pierre-Hubert Nysten - AbsoluteAstronomy.com

Pierre-Hubert Nysten was a Belgian-French physiologist and pediatrician who was a native of Liège

Liège

Liège is a major city and municipality of Belgium located in the province of Liège, of which it is the economic capital, in Wallonia, the French-speaking region of Belgium....

. He studied medicine in Paris

Paris

Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

, and subsequently became a professor at the École de Médecine in Paris.

With Marie François Xavier Bichat

Marie François Xavier Bichat

Marie François Xavier Bichat , French anatomist and physiologist, was born at Thoirette .Bichat is best remembered as the father of modern histology and pathology. Despite the fact that he worked without a microscope he was able to advance greatly the understanding of the human body...

(1771–1802), Nysten performed pioneer experiments in cardiology

Cardiology

Cardiology is a medical specialty dealing with disorders of the heart . The field includes diagnosis and treatment of congenital heart defects, coronary artery disease, heart failure, valvular heart disease and electrophysiology...

, including the effects of galvanic

Galvanism

In biology, galvanism is the contraction of a muscle that is stimulated by an electric current. In physics and chemistry, it is the induction of electrical current from a chemical reaction, typically between two chemicals with differing electronegativities....

current on the heart

Heart

The heart is a myogenic muscular organ found in all animals with a circulatory system , that is responsible for pumping blood throughout the blood vessels by repeated, rhythmic contractions...

. From 1805 he studied silkworm diseases in southern France, and provided an early description of polyhedrosis

Nuclear Polyhedrosis Virus

The nuclear polyhedrosis virus which belongs to the sub group Baculoviruses is a virus affecting insects, predominantly moths and butterflies. It has been used as a pesticide for crops infested by insects susceptible to contraction...