abdominal region vs innard

abdominal region

noun
  • One of the nine areas that the abdomen is divided into. 

  • Used other than figuratively or idiomatically: see abdominal, region. 

innard

noun
  • Entrail; gut; intestine. 

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