Crista terminalis
The crista terminalis (also known as the terminal crest, or crista terminalis of His) is a vertical ridge on the: 56 posterolateral inner surface of the adult right atrium extending between the superior vena cava, and the inferior vena cava.: 56 The crista terminalis denotes where the junction of the embryologic sinus venosus and the right atrium occurred during embryonic development. It forms a boundary between the rough: 56 trabecular 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.: 56
| Crista terminalis | |
|---|---|
Interior of the heart, frontal view (crista terminalis labeled on the left, second from the top) | |
| Details | |
| Identifiers | |
| Latin | crista terminalis atrii dextri |
| TA98 | A12.1.01.003 |
| TA2 | 4025 |
| FMA | 9236 |
| Anatomical terminology | |
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