cardiac tube

car·di·ac tube

the primordial tubular heart in the embryo, before its division into chambers.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
The hospital required a cardiac tube which cost Dh700 and I bought it for him.
They found defects related to the looping of the cardiac tube on the right (normal development) or left (abnormal development) side of the heart particularly interesting.