buccal cavity vs maw

buccal cavity

noun
  • The oral cavity, bound by the cheeks of the face, the palate, and the flesh of the mandible, opening onto the mouth and the fauces, and containing the teeth, tongue, gums, and other structures. 

  • The first part of the stomodaeum, lying just within the mouth; its dilator muscles arising on the clypeus, and inserted before the frontal ganglion and its connectives. 

maw

noun
  • The mouth. 

  • Mother. 

  • Any large, insatiable or perilous opening. 

  • Appetite; inclination. 

  • A gull. 

  • The upper digestive tract (where food enters the body), especially the mouth and jaws of a fearsome and ravenous creature. 

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