Crista terminalis | |
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Details | |
Identifiers | |
Latin | crista terminalis atrii dextri |
TA98 | A12.1.01.003 |
TA2 | 4025 |
FMA | 9236 |
Anatomical terminology |
The crista terminalis (also known as the terminal crest,[citation needed] or crista terminalis of His[1]) is a vertical ridge on the[2]: 56 posterolateral[3] inner surface of the adult right atrium extending between the superior vena cava, and the inferior vena cava.[2]: 56 The crista terminalis denotes where the junction of the embryologic sinus venosus and the right atrium occurred during embryonic development.[3] It forms a boundary between the rough[2]: 56 trabecular[4] portion and the smooth, sinus venosus-derived portion (sinus venarum) of the internal surface of the right atrium. The sinoatrial node is located within the crista terminalis.[2]: 56
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