cystic artery vs artery

cystic artery and artery both are nouns.

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

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

cystic artery: a branch of the hepatic artery; supplies the gall bladder and the surface of the liver
artery: a blood vessel that carries blood from the heart to the body

Other hypernyms of cystic artery include arteria, arterial blood vessel.

cystic artery (noun)	artery (noun)
a branch of the hepatic artery; supplies the gall bladder and the surface of the liver	a major thoroughfare that bears important traffic
	a blood vessel that carries blood from the heart to the body