What are the functions of the parasympathetic nervous center

The role of the parasympathetic nervous center is very important, and many functions of our body are completed through the regulation of the parasympathetic nervous center. For example, our pupil dilation, heartbeat, vasoconstriction, arterial dilation, rising and falling needs, bronchial dilation, etc. are all regulated by the parasympathetic nervous center. If there is an abnormality in the parasympathetic center, the body will not be able to complete its normal work.

The parasympathetic nervous system is the main part of the nervous system. It is often located in the central axis of the animal's body and is composed of distinct cerebral ganglia, nerve cords or brain and spinal cord as well as the connecting components between them. In the central nervous system, a large number of nerve cells gather together to organically form networks or circuits. The central nervous system receives incoming information from all parts of the body, integrates and processes it into coordinated motor output, or stores it in the central nervous system to become the neural basis of learning and memory. Human consciousness, psychology, and thinking activities are also functions of the central nervous system.

The functions of the parasympathetic nervous system are opposite to those of the sympathetic nervous system. Although it is not as consistent as the sympathetic nervous system, it is also quite related. Its fibers are not distributed in the limbs, but the erector muscles of the sweat glands, adrenal glands, thyroid gland, uterus, etc. have parasympathetic nerve distribution. The parasympathetic nervous system can maintain the body's physiological balance in a quiet state. Its functions have three aspects: 1. Enhance gastrointestinal activity, the secretion of digestive glands, promote the excretion of urine and feces, and maintain the body's energy. The pupils constrict to reduce stimulation and promote the production of glycogen in the liver to store energy. The heartbeat slows down, blood pressure drops, and bronchi narrow to save unnecessary consumption and assist reproductive activities, such as dilating reproductive blood vessels and increasing secretions of sexual organs.

Not only that, our parasympathetic nervous center is also responsible for regulating gastrointestinal motility, muscle relaxation, saliva secretion, sweat secretion and other functions. Once the parasympathetic nervous center is disordered, gastrointestinal function, endocrine function, and blood circulation will be seriously damaged, and may even pose a threat to life.