testicular artery vs internal spermatic artery

testicular artery and internal spermatic artery both are nouns.

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

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

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

Other synonyms of testicular artery include arteria testicularis.

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