The unity of neural and humoral regulation

The hormone glands of internal secretion is not the only squad humoral regulators. The name of these regulators are Legion.
This includes first of all metabolites formed in the tissues. Even carbon dioxide, which is the blood takes away from the body tissues, cause expansion of blood vessels, improves local blood circulation. Therefore, the simplest of the metabolites are involved in self-regulation of our functions.
Next you need to call a number of hormone-like substances produced in our tissues. A large part in the regulation of blood circulation takes serotonin. In the brain important regulator is gamma-aminobutyric acid, etc. Over the last decade, serious attention is paid to the so-called neuropeptides, substances that occur in the brain tissue and providing a variety of effects on the brain.
Neural and humoral regulation of the single and indissolubly connected. Humoral control path is the most ancient. It is more common, sometimes without an exact address. Specifies the address of the fact that certain factors, some organs and tissues more sensitive than others. Nervous regulation has the advantage that the reflexes provide the exact address of orders on the nerve to go only to the body, where they are directed.
However, to distinguish one type of regulation from the other cannot. In fact, running on nerve signal is delivered to the addressee mediators, produced in the nervous system. In skeletal muscle the end of the motor nerves and end of the vagus nerve in the heart muscle and other organs use the services of a mediator acetylcholine. The endings of the sympathetic nerve in various bodies that is the role of the already familiar norepinephrine. Quickly being destroyed in the tissues, mediators act only where you need it.
The unity of both "conductors" is defined and what the role of the main of them took on the nervous system that regulates the work of the endocrine glands, and metabolic processes in our tissues, serving as the source of physiologically active substances.