For treatment of later outbreaks of genital herpes, after the first infection, the acyclovir dosage is 200 mg five times a day (about every four hours) for five days, starting at the first signs of an outbreak. The earlier the medication is started, the better it works.
They connect receptors to the central nervous system and also connect one part of the nervous system to another, for example in the brain and spinal cord. They also carry impulses from the nervous system to effector organs, such as muscles and glands. When neurons are stimulated they transmit an electrical impulse.
Speed of Impulses. Neurones send messages electrochemically; this means that chemicals (ions) cause an electrical impulse. Neurones and muscle cells are electrically excitable cells, which means that they can transmit electrical nerve impulses. These impulses are due to events in the cell membrane, so to understand the nerve impulse we need to revise some properties of cell membranes.