Concussion
Terminology

The terms mild brain injury, mild traumatic brain injury (mTBI), mild head injury (MHI), and concussion may be used interchangeably; although the term "concussion" is still used in sports literature as interchangeable with "MHI" or "mTBI", the general clinical medical literature uses "mTBI" instead, since a 2003 CDC report outlined it as an important strategy. In this article, "concussion" and "mTBI" are used interchangeably.

The term "concussion" is from Latin concutere, "to shake violently" or concussus, "action of striking together".
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