artery vs expressway

artery

noun
  • A major transit corridor in a system of roads, rivers, or railway lines. 

  • Any of the muscular- and elastic-walled blood vessels forming part of the circulation system by which blood is conveyed away from the heart regardless of its oxygenation status; see pulmonary artery. 

  • Hyponyms: alloartery, arteriole, endartery, microartery; see also Thesaurus:artery 

expressway

noun
  • A road built to freeway standards. 

  • A divided highway, especially one whose intersections and direct access to adjacent properties have been eliminated. 

  • A road built for high speed traffic, but not up to motorway standards or designated a motorway. 

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