duodenal vs ventral

duodenal

adj
  • Of or pertaining to the duodenum, the first part of the small intestine. 

ventral

adj
  • Related to the abdomen or stomach. 

  • On the front side of the human body, or the corresponding surface of an animal, usually the lower surface. 

  • On or relating to the bottom portion of either foot and/or hand. 

noun
  • Any of the enlarged and transversely elongated scales that extend down the underside of a snake's body from the neck to the anal scale. 

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