Famous 19th Century Physiologists

Wilhelm Wundt was a German physiologist, professor, and philosopher. He is often counted among the founders of modern psychology and is widely considered the father of experimental psychology. He is also credited with founding the first laboratory for psychological research, which he founded at the University of Leipzig in 1879.

Theodor Schwann was a German physiologist and physician best remembered for his important contributions to biology. He is credited with discovering the Schwann cells, which is named after him. He is also credited with discovering pepsin and the organic nature of yeast. Theodor Schwann also invented the term metabolism.

Otto Heinrich Warburg was a German medical doctor and physiologist. In 1931, his discovery of the nature of the respiratory enzyme earned him the prestigious Nobel Prize in Physiology or Medicine. He also played an important role during World War I where he served as an officer in the cavalry regiment; he was honored with the Iron Cross for bravery.

A pioneer of physical anthropology, Johann Friedrich Blumenbach laid down one of the first racial classification systems for humans after studying human skulls, dividing mankind into five racial groups. Born into a family of academics, he was a prodigy. He was against scientific racism, though his theory promoted the degenerative hypothesis.

Born in Budapest, Nobel Prize-winning biochemist Albert Szent-Györgyi shot himself in the arm while serving in World War II, so that he could be sent back home, and then studied medicine. While he is remembered for first isolating vitamin C, unknown to many, he was also a skilled pianist.

Claude Bernard was a French physiologist whose scientific experiments led to several important discoveries. He is credited with coining the phrase milieu intérieur, which refers to the extracellular fluid (ECF) environment. He also pioneered the use of a blinded experiment to eliminate various experimental biases.

Nobel Prize-winning German physiologist Emil Adolf von Behring is remembered as a pioneer of immunology for his research on serum therapy developed an antitoxin to cure diphtheria. One of the 13 children of his parents, he had studied medicine at a military academy due to lack of funds.

Johannes Peter Müller was a German physiologist, ichthyologist, herpetologist, and comparative anatomist. Known for his discoveries and his capability to synthesize knowledge, Müller made important contributions to the field of physiology. He also mentored physiologists and scientists like Hermann von Helmholtz, Theodor Schwann, Emil du Bois-Reymond, Friedrich Gustav Jakob Henle, Ernst Haeckel, and Ernst Wilhelm Brücke.

Charles Richet was a French physiologist remembered for his pioneering work in immunology. He is acclaimed for his work on anaphylaxis, which earned him the prestigious Nobel Prize in Physiology or Medicine in 1913. He was also interested in the study of the paranormal. A proponent of eugenics, Richet was in charge of the French Eugenics Society for six years.

John James Rickard Macleod was a Scottish biochemist and physiologist. Even though his research covered diverse topics in physiology and biochemistry, he is best remembered for his work in carbohydrate metabolism. He played a major role in the discovery and isolation of insulin, for which he shared the 1923 Nobel prize in Physiology or Medicine with Frederick Banting.  

German embryologist and neurologist Robert Remak is known for pathbreaking scientific feats such as the discovery of the Remak’s ganglia and the use of electrotherapy to treat nervous ailments. He also named the three layers of the embryo, the ectoderm, mesoderm, and endoderm. His Jewish origin deprived him from valid recognition.

Best remembered as the founder of the domain of tropical medicine, parasitologist Sir Patrick Manson also had a degree in law. He practiced medicine in places such as Taiwan, Hong Kong, and China and was the man behind the formation of the University of Hong Kong. He was later knighted, too.

Apart from being a scientist and physician, John Boyd Orr also conducted ground-breaking research on nutrition. The Nobel Peace Prize winner, who was known for his campaigns to end world hunger, had also served the British army and navy as a medical officer. He was later knighted, too.

A Harvard alumnus, Lawrence Joseph Henderson was associated with the Harvard Medical School for almost four decades. His chief contribution as a biochemist was his proposal of the Henderson–Hasselbalch equation, which calculates the acid–base equilibria of substances. He also penned the iconic work The Fitness of the Environment.

Ernst Wilhelm von Brücke was a German physician and physiologist. He studied medicine at the University of Berlin. Together with Emil Du Bois-Reymond, Hermann von Helmholtz and others, he founded the Physikalische Gesellschaft (Physical Society) in Berlin. He had a successful academic career and is remembered for his research on the nature of cells and studies of albumin. 

Ludwig Büchner was a German philosopher, physiologist, and physician. He was one of the exponents of 19th-century scientific materialism. He studied at the University of Strasbourg, the University of Würzburg, and the University of Vienna before becoming a lecturer in medicine. As an exponent of scientific materialism, he founded the "German Freethinkers League" ("Deutsche Freidenkerbund") in Frankfurt.  

Marshall Hall was an English physician, neurologist, and physiologist. He is credited with contributing immensely to the theory of reflex arc. Hall also wrote many books on neurological diseases, such as epilepsy and apoplexy (stroke). An ardent supporter of the abolitionist movement, Marshall Hall was inducted into the American Philosophical Society (APS) in 1853.