This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Auricle (left atrium, anatomy)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The auricle of the left atrium is the most superior structure within the chamber. It is a blind-ending saccule that is in continuity with the anterior wall of the chamber. Its inner surface is lined by musculi pectinati.

On the external surface of the heart, the left atrial auricle projects anteriorly and then to the right over the external surface of the pulmonary trunk.

The left auricle is longer, narrower and more angulated than its counterpart in the right atrium.


Related pages

Create an account to add page annotations

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page