hepatic portal vein vs vena portae

hepatic portal vein and vena portae both are nouns.

Word	Noun	Adjective	Verb	Adverb
hepatic portal vein	Yes	No	No	No
vena portae	Yes	No	No	No

As nouns, hepatic portal vein and vena portae are synonyms defined as:

hepatic portal vein and vena portae: a short vein that carries blood into the liver

Other synonyms of hepatic portal vein include portal, portal vein.

hepatic portal vein (noun)	vena portae (noun)
a short vein that carries blood into the liver	a short vein that carries blood into the liver