buccal artery vs artery

buccal artery and artery both are nouns.

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

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

buccal artery: a branch of the maxillary artery that supplies blood to the buccinator muscle and the cheek
artery: a blood vessel that carries blood from the heart to the body

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

buccal artery (noun)	artery (noun)
a branch of the maxillary artery that supplies blood to the buccinator muscle and the cheek	a major thoroughfare that bears important traffic
	a blood vessel that carries blood from the heart to the body