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Nomenclature

Authoring team

The aortic valve leaflets are called a variety of terms depending on the means of classification:

  • according to embryological origin: based on the division of the embryonic truncus arteriosus into pulmonary trunk and aorta
  • according to the anatomical position in the mature heart
  • according to the relationship to the coronary arteries

Hence, with respect to the above systems, the following are the terms for the three leaflets:

  • right; anterior; right coronary leaflet
  • left; left posterior; left coronary leaflet
  • posterior; right posterior; non-coronary leaflet

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