duodenum vs haslet

duodenum

noun
  • The first part of the small intestine, starting at the lower end of the stomach and extending to the jejunum. 

haslet

noun
  • The internal organs of an animal, especially the heart and liver of a pig. 

  • A meatloaf made of these organs. 

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