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A vagal maneuver is an action used to stimulate the parasympathetic nervous system by activating the vagus nerve.The vagus nerve is the longest nerve of the autonomic nervous system and helps regulate many critical aspects of human physiology, including heart rate, blood pressure, sweating, and digestion through the release of acetylcholine.
The vagus nerve can also be triggered by stress, and that desire for elimination is essentially your body’s un-ideal relaxation technique. 6 Breathwork Exercises To Calm the Vagus Nerve and Save ...
Vagovagal reflex refers to gastrointestinal tract reflex circuits where afferent and efferent fibers of the vagus nerve [1] coordinate responses to gut stimuli via the dorsal vagal complex in the brain. The vagovagal reflex controls contraction of the gastrointestinal muscle layers in response to distension of the tract by food.
The information about the degree of atrial stretch is then conveyed through afferent fibres of the vagus nerve (cranial nerve X) to the medulla oblongata; efferents controlling heart rate (chronotropy) and contraction strength (inotropy) are then conveyed back to the heart through sympathetic nerves as well as the vagus nerve. [7]
The CVMs, which send motor fibers to the heart via the vagus nerve, are responsible for tonic inhibitory control of heart rate. Thus, an increase in pulmonary stretch receptor activity leads to inhibition of the CVMs and an elevation of heart rate (tachycardia). This is a normal occurrence in healthy individuals and is known as sinus arrhythmia.
The vagus nerve is part of the parasympathetic nervous system, often called the “rest and digest” system because it helps the body relax after periods of stress and regulates bodily functions ...
A meta-analysis of "voluntary slow breathing", heart rate, and heart rate variability found that such breathing leads to an increase in the parasympathetic nervous control of the heart, and notes "By considering the importance of the parasympathetic nervous system for health-related issues, stimulating non-invasively the vagus nerve represents ...
Vagus nerve stimulation can also increase the release of important brain chemicals such as serotonin and norepinephrine, which help regulate mood and are typically low in people with depression ...