Vagus Nerve

The Vagus Nerve is the tenth (X) mixed cranial nerve; its sensitive part innervates part of the dura mater of the brain, the skin of the auditory canal and auricle, the mucous membrane of the pharynx, soft palate and larynx, as well as the heart, respiratory organs, digestion and kidneys; the motor part innervates the striated muscles of the pharynx and larynx; parasympathetic carries out parasympathetic innervation of the internal organs of the neck, chest and abdomen (including the digestive organs to the sigmoid colon).

The Vagus Nerve, or Vagus Nerve, is the tenth cranial mixed nerve that innervates many organs and tissues in the body. In this article we will look at its functions, anatomy and clinical significance.

The sensitive part of the vagus nerve innervates the dura mater of the brain, the auricle and ear canal, the pharyngeal mucosa, the soft palate and larynx, as well as the heart, respiratory tract, digestive system and kidneys. The motor part of the nerve innervates the muscles of the pharynx and larynx.

Parasympathetic innervation of the vagus nerve occurs through the autonomic ganglia, which are located in the chest and abdominal cavities. Parasympathetic fibers of the vagus nerve influence the internal organs of the neck, chest and abdomen, including the digestive organs to the sigmoid colon.

The clinical significance of the vagus nerve is that its dysfunction can lead to various diseases and disorders. For example, damage to the vagus nerve can lead to abnormal heart rhythms, respiratory failure, poor digestive function, and other problems.

Thus, the vagus nerve plays an important role in the functioning of many organs and systems of the body. Knowledge of its anatomy and physiology can help in the diagnosis and treatment of various diseases associated with its dysfunction.