carcass vs muscles

carcass

noun
  • The body of a slaughtered animal, stripped of unwanted viscera, etc. 

  • The framework of a structure, especially one not normally seen. 

  • The body of a dead human, a corpse. 

  • The body of a dead animal. 

  • An early incendiary ship-to-ship projectile consisting of an iron shell filled with saltpetre, sulphur, resin, turpentine, antimony and tallow with vents for flame. 

muscles

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