arteria vertebralis vs vertebral artery

arteria vertebralis and vertebral artery both are nouns.

Word	Noun	Adjective	Verb	Adverb
arteria vertebralis	Yes	No	No	No
vertebral artery	Yes	No	No	No

As nouns, arteria vertebralis and vertebral artery are synonyms defined as:

arteria vertebralis and vertebral artery: the first branch of the subclavian artery; divided into four parts

arteria vertebralis (noun)	vertebral artery (noun)
the first branch of the subclavian artery; divided into four parts	the first branch of the subclavian artery; divided into four parts