metatarsal artery vs artery

metatarsal artery and artery both are nouns.

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

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

metatarsal artery: dorsal and plantar arteries to the metatarsal region of the foot
artery: a blood vessel that carries blood from the heart to the body

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

metatarsal artery (noun)	artery (noun)
dorsal and plantar arteries to the metatarsal region of the foot	a major thoroughfare that bears important traffic
	a blood vessel that carries blood from the heart to the body