‘Medical staff concluded he was concussed but there was no lasting brain damage.’ ‘The injury to the back of his head may have stunned or concussed him but was not responsible for his death.’ ‘When we took Jake to hospital after he collapsed we just thought he was concussed.’ When the head experiences a hard impact, the brain can shift and move in such a way that it is rubs with the inside of the skull bone. The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Symptoms can last for days, weeks or even longer. The impact can lead to concussions, leading to temporary changes in the way the brain functions. This condition usually occurs as a result of the head being hit, or if the upper body is shaken violently. Coordination of the body deteriorates, for example easy to fall. Symptoms may include loss of consciousness (LOC); memory loss; headaches; difficulty with thinking, concentration or balance; nausea; blurred vision; sleep disturbances; and mood changes. 4 words related to concuss: shake, agitate, injure, wound. A concussion is a mild form of traumatic brain injury that results in abnormal brain function. Encephal/o - brain 7. Doing risky exercise can increase the risk of concussion. It is common for concussions to appear unnoticed, as in some cases, symptoms are not seen until a few days after an accident occurs. concuss somebody to hit somebody on the head, making them become unconscious or confused for a short time Topics Health problems c2 Word Origin late 16th cent. es To injure by concussion: "a middle-aged woman concussed by a blow on the head" (Manchester Guardian Weekly). [Latin concutere, concuss-, to strike together : com-, com- + quatere, to strike; see kwēt- in Indo-European roots.] Any of these symptoms may begin immediately, or appear days after the injury. Myel/o – spinal cord, bone marrow 11. Origin of concussion 1350–1400; Middle English