cerebral cortex vs lamina

cerebral cortex

noun
  • The grey, folded, outermost layer of the cerebrum that is responsible for higher brain processes such as sensation, voluntary muscle movement, thought, reasoning, and memory. 

lamina

noun
  • either of two broad, flat plates of bone of a vertebra that is fused with and extends from the pedicle to the median line of the neural arch to form the base of the spinous process and that along with the pedicle forms the posterior part of the vertebral foramen 

  • the flat expanded part of a foliage leaf or leaflet 

  • one of the narrow thin parallel plates of soft vascular sensitive tissue that cover the flesh within the wall of a hoof 

  • a fine layer that occurs in sedimentary rocks 

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