This site is intended for healthcare professionals
General Practice Notebook
Medical search

crista terminalis (heart, anatomy)

FREE subscriptions for doctors and students... click here
You have 3 open access pages.

The crista terminalis is a vertical ridge of smooth myocardium within the right atrium of the heart. It is on the lateral wall of the chamber. It extends between the right side of the orifice of the superior vena cava inferiorly to the right side of the valve of the inferior vena cava. It marks the dividing line between the posterior, smooth sinus venarum - the remains of the developmental right horn of the sinus venosus - and the anterior, rough part of the right atrium - the original auricular chamber of the embryo. It forms from the superior part of the right venous valve where the sinus venosus enters the right atrium.

The sinuatrial node is within the upper part of the crista terminalis. On the external surface of the heart, the crista terminalis occasionally is represented as the sulcus terminalis.


General Practice Notebook
General Practice Notebook
The information provided herein should not be used for diagnosis or treatment of any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions. Copyright 2016 Oxbridge Solutions LtdĀ®. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions LtdĀ® receives funding from advertising but maintains editorial independence. GPnotebook stores small data files on your computer called cookies so that we can recognise you and provide you with the best service. If you do not want to receive cookies please do not use GPnotebook.