cervix vs cervix uteri

cervix and cervix uteri both are nouns.

Word	Noun	Adjective	Verb	Adverb
cervix	Yes	No	No	No
cervix uteri	Yes	No	No	No

As nouns, cervix and cervix uteri are synonyms defined as:

Other synonyms of cervix include uterine cervix.

cervix (noun)	cervix uteri (noun)
the part of an organism (human or animal) that connects the head to the rest of the body	necklike opening to the uterus
necklike opening to the uterus