Definition of Apex
Apex: From the Latin meaning summit, the apex is the tip of a pyramidal or rounded structure, like the lung or the heart. The apex of the lung is indeed its tip, its rounded most superior portion. The apex of the heart is likewise its tip, but that is formed by the left ventricle so it is essentially the most inferior portion of the heart.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=2301
Last Editorial Review: 3/26/1998 2:23:00 PM
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