ampulla vs ventricle

ampulla

noun
  • The dilated end of a duct. 

  • An Ancient Roman two-handled vessel. 

  • A vessel for containing consecrated wine or oil. 

  • The spongiole of a root. 

ventricle

noun
  • One of two lower chambers of the heart. 

  • One of four fluid-filled cavities in the brain, that are continuous with the central canal of the spinal cord. 

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