cervix vs nuchal

cervix

noun
  • The neck 

  • The lower, narrow portion of the uterus where it joins with the top end of the vagina. 

  • The necklike portion of any part, as of the womb. 

nuchal

noun
  • The back of the neck. 

  • A neck scale, especially of a lizard. 

adj
  • Of or pertaining to the back or nape of the neck. 

How often have the words cervix and nuchal occurred in a corpus of books? (source: Google Ngram Viewer )