Crista terminalis

The crista terminalis is a smooth muscular ridge in the superior aspect of right atrium. It represents the junction between the sinus venosus and the heart. It divides the pectinate muscle origin and the right atrial appendages in the right atrium.

Its identification is significant in the determination of atrial situs.

Anatomy: Thoracic
Share article

Article information

rID: 31463
System: Cardiac
Section: Anatomy
Tag: pm
Synonyms or Alternate Spellings:

Support Radiopaedia and see fewer ads

Updating… Please wait.

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

 Thank you for updating your details.