blood vessel vs tendon

blood vessel

noun
  • A component of the circulatory system, such as an artery, capillary, or vein, that carries blood. 

tendon

noun
  • A tough band of flexible but inelastic fibrous collagen tissue that connects a muscle with its bony attachment and transmits the force which the muscle exerts. 

  • The hamstring of a quadruped. 

  • A wire or bar used to strengthen prestressed concrete. 

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