Acceleration-deceleration movements of the head often result in polar injuries in which
A) injury is localized to the site of initial impact.
B) widespread neuronal damage is incurred.
C) bleeding from venules fills the subdural space.
D) focal injuries occur in two places at opposite poles.

Question

Quizplus · Accepted Answer

Polar injuries occur as a consequence of the brain shifting within the skull and meninges during the course of an acceleration-deceleration movement resulting in local injury at two opposite poles of the brain.Focal injuries are those that are localized to the site of impact to the skull.Diffuse injuries occur when movement of the brain causes widespread neuronal damage.An intracranial hematoma is a localized collection of blood within the cranium.

Acceleration-Deceleration Movements of the Head Often Result in Polar Injuries