Concussion is derived from the Latin word concussus, which means to shake violently. Initially, it was thought to produce only a temporary disturbance of brain function due to neuronal, chemical, or neuroelectrical changes without any physical changes in the brain. We now know that structural damage with the loss of brain cells does occur with some concussions. Because of advances over the last several years in the neurobiology of cerebral concussion, it has become clear that, in the minutes to days after concussive brain injury, living brain cells may exist be vulnerable, especially to minor changes in cerebral blood flow, increases in intracranial pressure, and to anoxia (insufficient oxygen to the brain). Read Full Story>>
|