Head Injury

Question 1

what is Coup?

Answer 1

Trauma at due to direct impact of injury

Question 2

What is contrecoup

Answer 2

Opposite side of head to direct impact site

Question 3

Which parts of the brain are most prone to hypoxic injury?

Answer 3

Cerebellum

Hippocampus

Question 4

What is Cushings Reflex?

Answer 4

Physiological nervous system response to increased intracranial pressure that results in hypertension and bradycardia. Cerebral perfusion pressure (CPP) = mean arterial pressure (MAP) - intracranial pressure. Therefore if intracranial pressure is high, the only way the body can compensate to increase CPP is by increasing MAP. A sympathetic reflex therefore results in hypertension. This results in a counter parasympathetic reflex by stimulation of the baroreceptors resulting in bradycardia