Injury or Poisoning
brain concussion
[ breyn kuhn-kuhsh-uhn ]
Subclass of:
Traumatic Brain Injury;
Closed head injuries
Definitions related to brain concussion:
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(concussion) A concussion is a type of brain injury. It involves a short loss of normal brain function. It happens when a hit to the head or body causes your head and brain to move rapidly back and forth. This sudden movement can cause the brain to bounce around or twist in the skull, creating chemical changes in your brain. Sometimes it can also stretch and damage your brain cells. Sometimes people call a concussion a "mild" brain injury. It is important to understand that while concussions may not be life-threatening, they can still be serious. Concussions are a common type of sports injury. Other causes of concussions include blows to the head, bumping your head when you fall, being violently shaken, and car accidents. Symptoms of a concussion may not start right away; they may start days or weeks after the injury. Symptoms may include a headache or neck pain. You may also have nausea, ringing in your ears, dizziness, or tiredness. You may feel dazed or not your normal self for several days or weeks after the injury.MedlinePlusU.S. National Library of Medicine, 2021
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(concussion) A violent jar or shock, or the condition which results from such an injury.NCI ThesaurusU.S. National Cancer Institute, 2021
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(concussion) Traumatic brain injury as a result of the action of a mechanical force on the head.U.S. FDA GlossaryU.S. Food & Drug Administration, 2021
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(concussion) Traumatic brain injury that results in temporary disturbance of cerebral function without radiographic changes.NICHD Pediatric TerminologyU.S. National Cancer Institute, 2021
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A nonspecific term used to describe transient alterations or loss of consciousness following closed head injuries. The duration of UNCONSCIOUSNESS generally lasts a few seconds, but may persist for several hours. Concussions may be classified as mild, intermediate, and severe. Prolonged periods of unconsciousness (often defined as greater than 6 hours in duration) may be referred to as post-traumatic coma (COMA, POST-HEAD INJURY). (From Rowland, Merritt's Textbook of Neurology, 9th ed, p418)NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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A concussion is an alteration in mental function or level of awareness caused by a head injury. A concussion may involve a loss of consciousness, can occur without obvious damage to brain structures, and lasts less than 6 hours.Merck & Co., Inc., 2020
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Concussion, or mild traumatic brain injury (MTBI), is common among contact and collision sports participants. One definition of concussion is a condition in which there is a traumatically induced alteration in mental status, with or without an associated loss of consciousness (LOC).WebMD, 2019
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A concussion is a traumatic brain injury that affects your brain function. Effects are usually temporary but can include headaches and problems with concentration, memory, balance and coordination.Mayo Foundation for Medical Education and Research
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Concussion (mild traumatic brain injury) is a closed head injury due to a direct blow to the head or deceleration of the head from an impulsive force that results in a change in mental status. https://www.cdc.gov/HEADSUP/Athenahealth, Inc., 2019
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Concussion, a temporary loss of brain function typically resulting from a relatively mild injury to the brain, not necessarily associated with unconsciousness. Concussion is among the most commonly occurring forms of traumatic brain injury and is sometimes referred to as mild traumatic brain injury...Encyclopedia Britannica, Inc., 2020
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