Aortic annulus

The aortic annulus is a fibrous ring at the aortic orifice to the front and to the right of the atrioventricular aortic valve and is considered the transition point between the left ventricle and aortic root. The annulus is part of the fibrous skeleton of the heart.  It is at the level of the sinus of Valsalva and is the site of aortic valve leaflet insertion. 

Related pathology

Thoracic anatomy
Share article

Article Information

rID: 35728
Systems: Vascular, Cardiac
Section: Anatomy
Tags: cases, stub
Synonyms or Alternate Spellings:
  • Aortic annular ring
  • Basal ring

Support Radiopaedia and see fewer ads

Updating… Please wait.

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.