Last reviewed dd mmm yyyy. Last edited dd mmm yyyy
The inferior vena caval orifice is the aperture through which the inferior vena cava returns blood from the lower half of the body to the right atrium. It is situated in the sinus venarum part of the chamber and its relations are:
Anteroinferiorly, the orifice is lined by a semi-lunate valve - the valve of the inferior vena cava.
Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page