vena facialis anterior vs anterior facial vein

vena facialis anterior and anterior facial vein both are nouns.

Word	Noun	Adjective	Verb	Adverb
vena facialis anterior	Yes	No	No	No
anterior facial vein	Yes	No	No	No

As nouns, vena facialis anterior and anterior facial vein are synonyms defined as:

vena facialis anterior and anterior facial vein: a continuation of the angular vein; unites with the retromandibular vein before emptying into the internal jugular vein

vena facialis anterior (noun)	anterior facial vein (noun)
a continuation of the angular vein; unites with the retromandibular vein before emptying into the internal jugular vein	a continuation of the angular vein; unites with the retromandibular vein before emptying into the internal jugular vein