brisket vs rib cage

brisket

noun
  • A cut of meat taken from the chest, especially from the section under the first five ribs. 

  • The chest of an animal. 

rib cage

noun
  • The enclosed area created by and within the ribs. 

  • A part of the skeleton within the thoracic area consisting of ribs, sternum and thoracic vertebrae. 

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