Closed-head injury

A Closed-head injury (pronounced: /ˈkləʊzd hɛd ˈɪndʒəri/) is a type of Traumatic brain injury that occurs when a sudden, violent motion or impact causes the brain to knock against the inside of the skull. Unlike an open head injury, the skull does not fracture or displace in a closed-head injury, and the brain is not exposed.

Etymology

The term "Closed-head injury" is derived from the fact that the injury occurs within the confines of the skull, without any breach of the skull or exposure of the brain. The term is often used in contrast to an Open-head injury, where the skull is fractured or displaced.

Related Terms

Concussion: A mild form of traumatic brain injury caused by a blow to the head or body, a fall, or another injury that shakes the brain inside the skull.
Contusion: A bruise on the brain caused by a direct blow to the head.
Coup-Contrecoup Injury: This occurs when the force impacting the head is not only strong enough to cause a contusion at the site of impact, but is also strong enough to cause a secondary contusion on the opposite side of the brain.
Diffuse Axonal Injury: This type of injury results from the brain moving back and forth in the skull as a result of acceleration or deceleration.
Intracranial Hematoma: This is a blood clot that forms within the brain or between the brain and the skull.

External links

Medical encyclopedia article on Closed-head injury
Wikipedia's article - Closed-head injury

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Closed-head injury