splenic artery vs arteria

splenic artery and arteria both are nouns.

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

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

splenic artery: an artery that originates from the celiac trunk and supplies blood to the spleen
arteria: a blood vessel that carries blood from the heart to the body

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

splenic artery (noun)	arteria (noun)
an artery that originates from the celiac trunk and supplies blood to the spleen	a blood vessel that carries blood from the heart to the body