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.

Thoracic anatomy
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Article information

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

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