Terminology_Organ/Body System

This is really a question with no clear cut answer. It is a human characteristic to want to divide things into discrete categories, but nature itself is not nearly so discriminating. The Terminologica Anatomica lists over 7,500 named parts of the human body. Of course, many of these terms apply to parts of the body that may not be considered organs, and some apply to parts of individual organs. However, this large number of names points to the complexity of the human body.

Thanks for your question. Perhaps a historical perspective will help you (and those who might read your question and others related to anatomical terminology.

There have been many efforts to standardize anatomical terminology since the late 1800's. A number of editions of the Nomina Anatomica were published under the auspices of the International Anatomical Nomenclature Committee (IANC) with the most recent 6th edition published by that group in 1989.