Johann Conrad Peyer (26 December 1653 – 29 February 1712) was a Swiss

anatomist Anatomy () is the branch of biology concerned with the study of the structure of organisms and their parts. Anatomy is a branch of natural science that deals with the structural organization of living things. It is an old science, having its ...

who was a native of

Schaffhausen Schaffhausen (; gsw, Schafuuse; french: Schaffhouse; it, Sciaffusa; rm, Schaffusa; en, Shaffhouse) is a list of towns in Switzerland, town with historic roots, a municipalities of Switzerland, municipality in northern Switzerland, and the ...

Biography

He studied medicine in

Paris Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. S ...

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Guichard Joseph Duverney Joseph Guichard Duverney or Joseph-Guichard Du Verney (5 August 1648 – 10 September 1730) was a French anatomist known for his work in comparative anatomy and for his treatise on the ear. The fracture of the iliac wing of the pelvis is some ...

(1648–1730), in

Montpellier Montpellier (, , ; oc, Montpelhièr ) is a city in southern France near the Mediterranean Sea. One of the largest urban centres in the region of Occitania (administrative region), Occitania, Montpellier is the prefecture of the Departments of ...

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Raymond Vieussens Raymond Vieussens (ca. 1635 – 16 August 1715) was a French anatomist from Le Vigan. There is uncertainty regarding the exact year of Vieussens birth, with some sources placing it as late as 1641. He studied medicine at the University of Montpe ...

(1635–1713) and received his medical degree in 1681 at

Basel , french: link=no, Bâlois(e), it, Basilese , neighboring_municipalities= Allschwil (BL), Hégenheim (FR-68), Binningen (BL), Birsfelden (BL), Bottmingen (BL), Huningue (FR-68), Münchenstein (BL), Muttenz (BL), Reinach (BL), Riehen (BS ...

. Later, he returned to Schaffhausen in order to practice medicine. Here, he performed research with Johann Jakob Wepfer (1620–1695), and Wepfer's son-in-law

Johann Conrad Brunner Johann Conrad Brunner (16 January 1653 – 2 October 1727) was a Swiss anatomist, especially cited for his work on the pancreas and duodenum. Life Brunner was born in Diessenhofen, and studied medicine in Schaffhausen, Strasbourg, Amsterda ...

(1653–1727). in 1677 Peyer published ''Exercitatio anatomico-medica de glandulis intestinorum earumque usu et affectionibus'', in which he describes the eponymous

Peyer's patches Peyer's patches (or aggregated lymphoid nodules) are organized lymphoid follicles, named after the 17th-century Swiss anatomist Johann Conrad Peyer. * Reprinted as: * Peyer referred to Peyer's patches as ''plexus'' or ''agmina glandularum'' (c ...

. These anatomical structures are aggregated lymphatic nodules found in the lining of the

small intestine The small intestine or small bowel is an organ in the gastrointestinal tract where most of the absorption of nutrients from food takes place. It lies between the stomach and large intestine, and receives bile and pancreatic juice through the p ...

. He was also the author of an influential work on

veterinary medicine Veterinary medicine is the branch of medicine that deals with the prevention, management, diagnosis, and treatment of disease, disorder, and injury in animals. Along with this, it deals with animal rearing, husbandry, breeding, research on nutri ...

titled ''Merycologia sive de Ruminantibus et Ruminatione Commentariae''.

References

The Galileo Project
Johann Conrad Peyer * 1653 births 1712 deaths People from Schaffhausen 17th-century Swiss physicians 18th-century Swiss physicians Swiss anatomists {{Switzerland-med-bio-stub