Claude Bernard
French physiologist whose name is borne by Lyon 1 Claude Bernard University.
Claude Bernard (12 July 1813 – 10 February 1878) was a French physiologist widely regarded as one of the most significant figures in the history of science. He is best known for originating the concept of the *milieu intérieur* (internal environment), a foundational idea in physiology that describes how the body maintains a stable internal state despite external changes. The term "homeostasis," which describes this process, was later coined by Walter Cannon. Bernard’s early life gave little indication of his future eminence. Born in the village of Saint-Julien, he initially pursued a literary career, writing a vaudeville comedy and a five-act prose drama, *Arthur de Bretagne*, before being persuaded by a critic to study medicine. He became an interne at the Hôtel-Dieu de Paris, where he met the physiologist François Magendie and began working as his lab assistant. Bernard’s research was often conducted in a cramped cellar, and his field was considered inferior at the time. His first major discovery involved the pancreas, showing that its juices contain a lipolytic enzyme that splits fats, a finding that won a prize from the French Academy of Sciences. He also discovered the glycogenic function of the liver, demonstrating that it produces sugars that can cause hyperglycemia, advancing the study of diabetes. Through vivisection, which he strongly defended, Bernard identified the vasomotor system, establishing the existence of both vasodilator and vasoconstrictor nerves. His use of vivisection was controversial; his wife and daughters were horrified by the practice, and they eventually separated. Despite this, Bernard’s work earned him high honors: he succeeded Magendie as professor, was elected to the Académie Française, and was given a public funeral upon his death in 1878, an unprecedented honor for a man of science in France.
- field
- Physiology
- nationality
- French
Verified Timeline
Lore & Background
Claude Bernard is the namesake of Lyon 1 Claude Bernard University (UCBL), one of three public universities in Lyon, France. The university was established in 1971 by merging the 'faculté des sciences de Lyon' with the 'faculté de médecine'. It specializes in science and technology, medicine, and sports science. The university's main administrative, teaching and research facilities are located in Villeurbanne, with other campuses in Gerland, Rockefeller, and Laennec in the 8th arrondissement of Lyon. Attached to the university are the Hospices Civils de Lyon, including the 'Centre Hospitalier Lyon-Sud', which is the largest teaching hospital in the Rhône-Alpes region and the second-largest in France. The university has been independent since January 2009. In 2020 it managed an annual budget of over €420 million and had 2857 faculty.
Reader's Guide
Claude Bernard's connection to the university is primarily through its name and specialization. The university's Faculty of Science was founded on 17 March 1808 by Napoleon I as part of the Academy of Lyon within the University of France. The Lyon Faculty of Medicine was founded on 8 November 1874. These two faculties merged on 8 December 1970 to create Claude Bernard University. The university's areas of study include natural sciences (biology, chemistry, mathematics, physics, earth science, electrical engineering, computer science, mechanical engineering), public health (medicine, pharmacy, odontology, audiology, occupational therapy, physiotherapy, speech therapy, ophthalmology, psychomotricity), and other fields like sport (STAPS), the Observatory of Lyon, the ISFA Graduate School of Actuarial Studies, and the engineering school École polytechnique universitaire de l'université Lyon-I. The university was ranked 9-11 out of universities in France and in the 201–300 band of world universities by Academic Ranking of World Universities 2021.
Did You Know?
- Lyon 1 Claude Bernard University was established in 1971 by merging the Faculty of Science and the Faculty of Medicine.
- The university's main administrative headquarters are located on the LyonTech-la Doua campus in Villeurbanne.
- The attached Hospices Civils de Lyon include the Centre Hospitalier Lyon-Sud, the largest teaching hospital in the Rhône-Alpes region and second-largest in France.
- The university managed an annual budget of over €420 million in 2020.
- The Lyon Faculty of Medicine was founded on 8 November 1874, and merged with the Faculty of Science on 8 December 1970.
More in Scientists & Mathematicians 1-24
Spotted an error? Know more?
This is a living reference — every entry is fact-audited, and reader corrections feed straight into our audit queue. Suggest an edit · See this site's audit record