Giulio Cesare Casseri

Giulio Cesare Casseri (1552 – 8 March 1616), also written as Giulio Casser, Giulio Casserio of Piacenza or Latinized as Iulius Casserius Placentinus, Giulio Casserio, was an Italian anatomist. He is best known for the books Tabulae anatomicae (1627) and De Vocis Auditusque Organis (c. 1600). He was the first to describe the Circle of Willis.

Doctor Giulio Cesare Casseri
Casseri in 1591
Born	1552 Piacenza, Duchy of Parma and Piacenza
Died	8 March 1616(1616-03-08) (aged 63–64) Padua, Republic of Venice
Resting place	Church of the Eremitani
Alma mater	University of Padua
Known for	Tabulae anatomicae, probably the most important anatomical treatise in the seventeenth century
Scientific career
Fields	Anatomy Neurology Comparative anatomy
Institutions	University of Padua

Biography

Born in Piacenza, Casseri moved to Padua as a young man, where he became an assistant to anatomist Hieronymus Fabricius. He studied at the School of Medicine of the University, where his teachers included Girolamo Mercuriale, who was Chair of Clinical Medicine in Padua from 1580-87. Casseri fell out with Fabricius, initially it seems as Fabricius resented the enthusiasm of the students for Casseri's teaching when Fabricius was ill.^[1][2][3]

He wrote Tabulae anatomicae, probably the most important anatomical treatise in the seventeenth century, published in Venice, in 1627. The book contained 97 copper-engraved pictures, by Francesco Valesio, inspired by Odoardo Fialetti, Italian painter and former student at Titian's school. The pictures in this book were copied in the works of his successor at Padua, Adriaan van den Spiegel (1578–1625). His De vocis auditusque organis historia anatomica was published in 1600-1 in Ferrara. In this work, he was the first to illustrate the use of tymbals in the production of sound by cicadas.^[4] He died in Padua.^[1]

The historian of comparative anatomy, F. J. Cole considered Casserius as one of the oldest exponents of comparative anatomy by examining and illustrating anatomical analogues of man in other animals.^[5] He described the arterial circle of the brain 37 years before the work of Thomas Willis after whom is named the Circle of Willis.^[6][7][8]

• 
  Casserius
• 
  Casseri's illustration of insect sound production
• 
  Title page of Tabulae anatomicae (1632)

Related eponyms

• Casser fontanelle (mastoid fontanelle)
• Casser perforated muscle (coracobrachialis muscle)