Epilepsy I Flashcards
define seizure
an event characterized by excessive synchronous activity of cerebral cortical neurons
define epilepsy
an underlying abnormality of the brain that predisposes the person to seizures
Following a seizure the patient will experience negative symptoms, or in other words, a loss of function in the areas of brain involved. This is the postictal period. This is thought to be due to what two mechanisms?
neuronal exhaustion;
inhibitory inputs to that area
A ____ seizure begins in one area of the cortex. It may remain localized or spread to varying degrees including the whole cortex causing a classic grand mal seizure
partial
generalized seizures are generalized from the onset. These types of epilepsies do not originate from a single abnormal focus, but instead these are thought to occur because the cortex as a whole is _______ . Often this is on a genetic basis
hyper-irritable
partial complex seizures and absences consist of a period of _________ unaccompanied by major motor manifestations
altered mental status
Simple behavior such as chewing and picking at clothing (automatisms) are more common in ______ seizures
partial complex