Epilepsy I Flashcards
(7 cards)
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