Hydantoin Drugs for Epilepsy Prevent the Neurons from Sending Out

Hydantoin drugs for epilepsy prevent the neurons from sending out impulses too rapidly or repeatedly by ________.

A) acting on different types of receptors throughout the body
B) affecting the flow of sodium in and out of the cell
C) depressing the motor cortex of the brain and raising the seizure threshold
D) inhibiting the conduction of nerve impulses in the cerebral cortex and motor areas of the brain