cerebrum vs skull

cerebrum

noun
  • The principal and most anterior part of the brain in vertebrates, which is located in the front area of the skull and divided into two hemispheres, left and right, separated by a fissure. In humans it is the largest part of the brain and is responsible for the integration of complex sensory functions and the initiation and coordination of voluntary activity, and the higher mental functions such as consciousness, thought, reason, emotion, and memory. 

skull

noun
  • The mind or brain. 

  • A crust formed on the ladle, etc. by the partial cooling of molten metal. 

  • The crown of the headpiece in armour. 

  • A shallow bow-handled basket. 

  • The main bones of the head considered as a unit; including the cranium, facial bones, and mandible. 

  • These bones as a symbol for death; death's-head. 

verb
  • To strike the top of (the ball). 

  • To hit in the head with a fist, a weapon, or a thrown object. 

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