<正> The experimental models of craniocercbral wounds caused by 7. 62 mm bullets

i. e. thepenetrating craniocerebral injury

the tangential brain injury and the tangential skull injury

were es-tablished in dogs. The craniocerebral ballistics

craniocerebral pathology

serum and cerebrospinal flu-id total lactate dehydrogenase

blood-brain barrier permcabalities

and the pathophysiology ofcardiovascular and respiratory systems were studied. These results suggest that: 1. These injuries ofhigh-velocity missile can all cause general brain damage and intracranio-hematomas ; 2. The severityof the wound depends on the site of the injury

the kinetic energy of the missile force and the effectof the temporary cavity ; 3. The brain injury can seriously damage the blood brain barrier

leadingto brain edema ; 4. The dysfunction of respiratory and cardiovascular system is the fatal complicationendangering the life of the subjects ; 5. Estimating serum and cerebrospinal fluid total lactatedehydrogenase is a simple and valuable way to judge the severity and prognosis of this injury.