Coup-contrecoup injury (diagram)

Case contributed by Assoc Prof Frank Gaillard

Diagram depicting coup-contrecoup injury mechanism. 

  1. external blow (yellow arrow)
  2. skull is accelerated away from blow (purple arrows) and impacts upon the underlying brain (coup)
  3. brain is also accelerated away from blow (blue arrow)
  4. brain then impacts upon the skull opposite the initial blow (contrecoup)

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