pancreatic artery vs arteria

pancreatic artery and arteria both are nouns.

Word	Noun	Adjective	Verb	Adverb
pancreatic artery	Yes	No	No	No
arteria	Yes	No	No	No

As nouns, arteria is a hypernym of pancreatic artery; that is, arteria is a word with a broader meaning than pancreatic artery:

pancreatic artery: a branch of the splenic artery that supplies the pancreas
arteria: a blood vessel that carries blood from the heart to the body

Other hypernyms of pancreatic artery include arterial blood vessel, artery.

pancreatic artery (noun)	arteria (noun)
a branch of the splenic artery that supplies the pancreas	a blood vessel that carries blood from the heart to the body