The vagus nerve, also known as a neutrotric nerve, is a nerve that runs from the brain to the abdomen, and along its path, gives birth to several branches that inert various cervical, thoracic and abdominal organs, with sensory and motor functions, being important for maintaining vital functions, such as heart rate and arterial regulation.Like what.
The pair of wavy nerves, located on each side of the body, is the tenth pair of a total of 12 cranial pairs that connect the brain to the body.As cranial nerves are called Roman numerals, the vagus nerve is also called even X and is considered the longest cranial pair.
- Certain stimuli of the vagus nerve.
- Caused by anxiety.
- Fear.
- Pain.
- Changes in temperature or simply by standing for a long time.
- Can cause the so-called vasovagal syncope.
- In which the person may experience severe dizziness or fainting.
- Since this nerve it can cause a decrease in heart rate and blood pressure.
- Understand what vasovagal syncope is and how to treat it.
The vagus nerve is the largest cranial nerve and originates in the back of the spinal bulb, a structure of the brain that connects the brain to the spinal cord, and exits the skull through an opening called a jugular foramen, descending through the neck and chest to its end.in the stomach.
During the vagus nerve, it inerts the pharynx, larynx, heart and other organs, through which the brain perceives what these organs are like and regulates many of their functions.
Some of the main functions of the vagus nerve include
In addition, the vagus nerve shares some of its functions with the glosopharyngeal nerve (par IX), especially in the neck region, being responsible for the taste sensation, where the vagus nerve is more related to acid and bitter-tasting glosopharyngeal.
Vagus nerve paralysis can cause difficulty swallowing, hoarseness, difficulty speaking, contractions of the pharynx and larynx muscles, and changes in blood pressure and heart rate.Syndromes.
In addition, there are situations that cause excessive stimulation of the vagus nerve, generating a situation called vagal syncope or fainting, which usually occurs in young people and is due to a decrease in heart rate and blood pressure due to lack of oxygen in the brain. , causing fainting Find out what to do if you pass out.
Vagal syncope can be caused by
Vagus nerve stimulation can also be done by massaging the side of the neck.Sometimes doctors perform the vagal maneuver urgently to regulate cardiac arrhythmia.