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

Andreas Vesalius Bruxellensis (1514- 1564)

A Flemish anatomist and surgeon, Andreas Vesalius was born on December 31, 1514 in Brussels, Belgium. He is considered to be the father of the science of Anatomy. Up until his studies and publications human anatomy studies consisted only on the confirmation of the old doctrines of Galen of Pergamon (129AD - 200AD). Anatomy professors would read to the students from Galen's work and a demonstrator would point in a body to the area being described, if a body was used at all. The reasoning was that there was no need to dissect since all that was needed to know was already written in Galen's books. Vesalius, Fallopius, and others started the change by describing what they actually saw in a dissection as opposed to what was supposed to be there. 

Vesalius had a notorious career, both as an anatomist and as a surgeon. His revolutionary book "De Humani Corporis Fabrica: Libri Septem" was published in May 26, 1543. One of the most famous anatomical images is his plate 22 of the book, called sometimes "The Hamlet". You can see this image if you hover over Vesalius' only known portrait which accompanies this article. Sir William Osler said of this book "... it is the greatest book ever printed, from which modern medicine dates" 

After the original 1543 printing, the Fabrica was reprinted in 1555. It was re-reprinted and translated in many languages, although many of these printings were low-quality copies with no respect for copyright or authorship.

The story of the wood blocks with the carved images used for the original printing extends into the 20th century. In 1934 these original wood blocks were used to print 617 copies of the book "Iconaes Anatomica". This book is rare and no more can be printed because, sadly, during a 1943 WWII bombing raid over Munich all the wood blocks were burnt.

One interesting aspect of the book was the landscape panorama in some of his most famous woodcuts which was only "discovered" until 1903.

Vesalius was controversial in life and he still is in death. We know that he died on his way back from a pilgrimage to Jerusalem, but how he died, and exactly where he died is lost in controversy. We do know he was alive when he set foot on the port of Zakynthos in the island of the same name in Greece. He is said to have suddenly collapsed and die at the gates of the city, presumably as a consequence of scurvy. Records show that he was interred in the cemetery of the Church of Santa Maria delle Grazie, but the city and the church were destroyed by an earthquake and Vesalius' grave lost to history. Modern researchers are looking into finding the lost grave and have identified the location of the cemetery. This story has not ended yet.

For a detailed biography of Andreas Vesalius CLICK HERE.

Personal note: To commemorate Andrea Vesalius' 500th birthday in 2014, there were many scientific meetings throughout the world, one of them was the "Vesalius Continuum" anatomical meeting on the island of Zakynthos, Greece on September 4-8, 2014. This is the island where Vesalius died in 1564. I had the opportunity to attend and there are several articles in this website on the presence of Andreas Vesalius on Zakynthos island. During 2015 I also attended a symposium on "Vesalius and the Invention of the Modern Body" at the St. Louis University. At this symposium I had the honor of meeting of Drs. Garrison and Hast, authors of the "New Fabrica". Dr. Miranda

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Combining root terms

Published: Friday, December 26, 2014 07:00 | Written by: Efrain A. Miranda, Ph.D. | Hits: 7504

Most medical words have only one root term and do not require combination as in the word [colectomy]. The situation arises when there is more than one organ or structure that is influenced by the suffix and the prefix (when present), such as [coloproctectomy]. Following are the basic rules for root terms combination:

  1. - Place an [-o-] between the root terms being combined. The combining vowel  [o] means "and". The word [gastroenterology] means "study of the stomach and the small intestine"
  2. - Organize the root terms using their proximal to distal relationship. For a better explanation, click here
  3. - If the first root term ends in a vowel, the combining vowel [-o-] is not needed. An example are the root terms [-chole-], meaning "bile or gall". and [cyst], meaning "bladder or sac". The word [chole-cyst-ectomy] does not have an [-o-] between the root terms
  4. - If the proximal to distal relationship does not apply, then the words should be ordered in a way that is euphonic
  5. - The only time a hyphen should be used is the rare case when using an [o] is not possible. Based on this rule, the word [salpingooophorectomy] is correct, the word [salpingo-oophorectomy] is not. An example of this is the word [cross-section].

An example of rule #5 is the word co-author. Since adding an [o] as a combining vowel would give us the word cooauthor (which is not correct), a hyphen must be used.

In the case of the word [coloproctectomy] the word can be divided into these components" The first root term [-col-], meaning "colon", the combining vowel [-o-], meaning "and", the second root term [-proct-], meaning "rectum", and the suffix [-ectomy], meaning "removal of". Properly read, the word means "removal of colon and rectum]. The proper term is [coloproctectomy], please do not use the terms [proctocolectomy] or worse, [protocolectomy], because they are incorrect usage of medical terminology.

For information on how to read medical words, click here.

There are more nuances to Medical Terminology, but they go beyond the objectives of "Medical Terminology Daily". For a complete course on Medical Terminology for your company, contact CAA, Inc.

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