arteria circumflexa humeri vs circumflex humeral artery

arteria circumflexa humeri and circumflex humeral artery both are nouns.

Word	Noun	Adjective	Verb	Adverb
arteria circumflexa humeri	Yes	No	No	No
circumflex humeral artery	Yes	No	No	No

As nouns, arteria circumflexa humeri and circumflex humeral artery are synonyms defined as:

arteria circumflexa humeri and circumflex humeral artery: an artery that supplies the shoulder joint and shoulder muscles

arteria circumflexa humeri (noun)	circumflex humeral artery (noun)
an artery that supplies the shoulder joint and shoulder muscles	an artery that supplies the shoulder joint and shoulder muscles