arteria brachialis vs artery

arteria brachialis and artery both are nouns.

Word	Noun	Adjective	Verb	Adverb
arteria brachialis	Yes	No	No	No
artery	Yes	No	No	No

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

arteria brachialis: the main artery of the upper arm; a continuation of the axillary artery; bifurcates into the radial and ulnar arteries at the elbow
artery: a blood vessel that carries blood from the heart to the body

Other hypernyms of arteria brachialis include arteria, arterial blood vessel.

arteria brachialis (noun)	artery (noun)
the main artery of the upper arm; a continuation of the axillary artery; bifurcates into the radial and ulnar arteries at the elbow	a major thoroughfare that bears important traffic
	a blood vessel that carries blood from the heart to the body