Medical Terminology Daily (MTD) is a blog sponsored by Clinical Anatomy Associates, Inc. as a service to the medical community. We post anatomical, medical or surgical terms, their meaning and usage, as well as biographical notes on anatomists, surgeons, and researchers through the ages. Be warned that some of the images used depict human anatomical specimens.

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A Moment in History

Jean-Louis Petit

Jean Louis Petit
(1674 – 1750)

French surgeon and anatomist, Jean Louis Petit was born in Paris in on March 13, 1674.  His family rented an apartment at his house to Alexis Littre (1658 – 1726), a French anatomist. Petit became an apprentice of Littre at seven years of age, helping him in the dissections for his lectures and at an early age became the assistant in charge of the anatomic amphitheater.

Because of Petit’s dedication to anatomy and medicine, in 1690 at the age of sixteen, became a disciple of a famous Paris surgeon, Castel.

In 1692, Petit entered the French army and performed surgery in two military campaigns. By 1693 he started delivering lectures and was accepted as a great surgeon, being invited to the most difficult operations.  In 1700 he was appointed Chief Surgeon of the Military School in Paris and in the same year he received the degree of Master of Surgery from the Faculty of Paris.

In 1715 he was made a member of the Royal Academy of Sciences and an honorary member of the Royal Society of London. He was appointed by the King as the first Director General of the Royal Academy of Surgery when it was founded in 1731.

Petit’s written works are of historical importance.  “Traite des Maladies des Os” ( A Treatise on Bone Diseases);  “Traite des Maladies Chirurgicales et des Operation” (A Treatise on Surgical Diseases and their Operations” This last book was published posthumously in 1774. He also published a monograph on hemorrhage, another on lachrymal fistula, and others.

He was one of the first to perform choIecystotomy and mastoidotomy. His original tourniquet design for amputations saved many in the battlefield and the design of the same surgical instrument today has not changed much since its invention by him.

His name is remembered in the lumbar triangle, also called the "triangle of Petit", and the abdominal hernia that can ensue through that area of weakness, the lumbar hernia or "Petit's hernia".

Sources:
1. “Jean Louis Petit – A Sketch of his Life, Character, and Writings” Hayne, AP San Fran Western Lancet 1875 4: 446-454
2. “Oeuvres compl?tes de Jean-Louis Petit” 1837 Imprimerie de F. Chapoulaud
3. Extraits de l'eloge de Jean-Louis Petit Ius dans Ia seance publique de I' Academie royale de chirurgie du 26 mai 1750” Louis A. Chirurgie 2001: 126 : 475- 81


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Avicenna


This article is part of the series "A Moment in History" where we honor those who have contributed to the growth of medical knowledge in the areas of anatomy, medicine, surgery, and medical research.To search all the articles in this series, click here.
Avicenna (980 AD – 1037 AD) Persian physician, philosopher, mathematician, naturalist, geologist, musical theorist, astronomer and poet. Ab? Al? al-Hysayn ibn-‘Abd-All?h ibn-S?na, also known as “ibn-S?na“ and as “Avicenna” was born in Afshaneh, near the city of Bokhara (in old Persia, what today is Iran) in 980AD.

Intellectually gifted, Avicenna studied philosophy and the Islam religion, with early studies in medicine. By age 18 he was already a famous physician. With access to the royal library Avicenna continued his studies and traveled through what today is Iran. Avicenna had government positions, becoming prime minister. Jailed for political reasons Avicenna wrote a large number of his medical, philosophical, and astronomical publications while in jail.

Of over 450 total medical books attributed to Avicenna, his most famous publication was the “al-Qanun-fi-al-Tibb” or the “Canon of Medicine”, consisting of five books on principles of medicine, diseases, drugs, and compound medicines. The Canon was translated into Latin and later into other languages, remaining an important book for at least until the 16th century.

Avicenna
He used the term “vermis” and spoke of the “tailed nucleus”, known to us as the “caudate nucleus”. Avicenna died in 1037AD at 57 years of age. He was buried in the city of Hamadh?n, where his tomb still exists. Avicenna has been called the “prince of physicians”.

Sources
1. “Avicenna” Koontz AR JAMA. 1962;179(1):99
2. "Honoring Avicenna, the Great Persian Physician on the World's Postage Stamps". Afshar, A. Arch Iranian Med (1029-2977), 13 (5), 447
3. "Avicenna and the Canon of Medicine: A millennial tribute" West J Med 133:367-370, Oct 1980
4. “Avicenna (980–1037 AD) Zargaran, A, et al. J Neurol (2012) 259:389–390 5. “Avicenna” JAMA 177:704 (1961)
Original image courtesy of NLM

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