ductus caroticus

duc·tus ca·ro·ti·cus

a portion of the embryonic dorsal aorta between points of juncture with the third and fourth arch arteries; it disappears early in development.
Synonym(s): carotid duct
References in periodicals archive ?
Normally right subclavian artery develops from right 4th aortic arch, a part of the right dorsal aorta caudal to the ductus caroticus & right 7th intersegmental artery.