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.
The electrical conduction system of the heart transmits signals generated usually by the sinoatrial node to cause contraction of the heart muscle. The pacemaking signal generated in the sinoatrial node travels through the right atrium to the atrioventricular node, along the Bundle of His and through bundle branches to cause contraction of the heart muscle.