internal spermatic artery vs testicular artery

internal spermatic artery and testicular artery both are nouns.

Word	Noun	Adjective	Verb	Adverb
internal spermatic artery	Yes	No	No	No
testicular artery	Yes	No	No	No

As nouns, internal spermatic artery and testicular artery are synonyms defined as:

internal spermatic artery and testicular artery: a branch of the aorta supplying the testicles

Other synonyms of internal spermatic artery include arteria testicularis.

internal spermatic artery (noun)	testicular artery (noun)
a branch of the aorta supplying the testicles	a branch of the aorta supplying the testicles