caval fold
Definition: a fold near the base on the right side of the dorsal mesentery, in which a primordial segment of the inferior vena cava develops between the right subcardinal vein and vessels within the liver.
Definition: a fold near the base on the right side of the dorsal mesentery, in which a primordial segment of the inferior vena cava develops between the right subcardinal vein and vessels within the liver.