artery vs arterial

artery is a noun but arterial is not a noun.

Word	Noun	Adjective	Verb	Adverb
artery	Yes	No	No	No
arterial	No	Yes	No	No

artery (noun)	arterial (noun)
a major thoroughfare that bears important traffic
a blood vessel that carries blood from the heart to the body

artery (adjective)	arterial (adjective)
	of or involving or contained in the arteries