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Antonio Scarpa

Antonio Scarpa
(1752-1832)   

Italian physician and anatomist, Antonio Scarpa is probably most remembered by the many human anatomy eponymic structures named after him, like "Scarpa's Fascia". Arising from humble origins, a very young Scarpa started medical studies at the University of Padua and obtained his doctorate at 18 years of age.

In 1772 he published a detailed anatomical study of the middle and internal ear, and later continued with animal comparative studies, surgical studies, and discoveries such as the innervation of the heart, and introduced the concept of arteriosclerosis. He left behind a solid group of books and publications

Known for his aggressive personality, Scarpa is said to have had more enemies than friends. After his death, his head was preserved and is still on display today at the History Museum of the University of Pavia, in Italy. Click here for a YouTube video depicting Scarpa's life and his head on display (Italian)

Antonio Scarpa was one of the first to describe the cochlea, one of the components of the inner ear

Original image courtesy of Images from the History of Medicine at nih.gov


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Ligament of Treitz


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 The ligament of Treitz is a fold of peritoneum over the suspensory muscle of the duodenum. This muscle is also known as the "muscle of Treitz" or "musculus suspensorius duodenii". This muscle was first described in 1853 by Dr. Václav Treitz. 

The muscle has an unusual in structure in that it is formed by a tendon with two muscular ends (see image #1) of dissimilar embryological origin and function. The superior muscular component is skeletal (voluntary) muscle and arises as a slip of muscle (Hilfsmuskel) from the right esophageal crus of the respiratory diaphragm, as well as muscular and ligamentous fibers arising in the region of origin of the celiac trunk and superior mesenteric artery. The inferior portion of the muscle is smooth (involuntary) muscle and has been described as continuous with both the longitudinal and circular muscle layer of the intestine at the duodenojejunal junction.

Suspensory muscle of the duodenum 1. skeletal muscle 2. tendon 3. smooth muscle
Click on the image for a larger version
Original image by Dr. Vaclav Treitz
The ligament of Treitz is an anatomical landmark used by anatomists and surgeons to denote the duodenojejunal junction and the point where the small intestine passes from retroperitoneal duodenum to intraperitoneal jeunum. Surgeons use the ligament of Treitz to measure the jejunum to decide where to perform an anastomosis.Click on the gray bar below the image to see the original sketch published by Dr. Václav Treitz in his 1853 publication "Ueber einen neuen Muskel am Duodenum des Menschens" (On a new muscle in the duodenum of man). The 'muscle of Treitz" is marked by an arrow.

Clinical anatomy, pathology, and surgery of the gastrointestinal tract are some of the many lecture topics developed and delivered to the medical devices industry by Clinical Anatomy Associates, Inc.

Sources:
1.
"Clinically Oriented Anatomy" Moore, KL. 3r Ed. Williams & Wilkins 1992
2. "The origin of Medical Terms" Skinner, AH, 1970
3. "The suspensory muscle of the duodenum and its nerve supply" Jit, I.; Singh, S. J. Anat. (1977), 123, 2, pp. 397-405
4. "Anatomical and functional aspects of the human suspensory muscle of the duodenum." Costacurta, L. Acta Anat (Basel). 1972;82(1):34-46
Image property of:CAA.Inc. Artists:Dr. E. Miranda and D.M. Klein