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The dorsal nucleus of vagus nerve (or posterior nucleus of vagus nerve or dorsal vagal nucleus or nucleus dorsalis nervi vagi or nucleus posterior nervi vagi) [1] is a cranial nerve nucleus of the vagus nerve (CN X) situated in the medulla oblongata of the brainstem ventral to the floor of the fourth ventricle.
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.
They argue that polyvagal theory incorrectly portrays the role of the different vagal nuclei in mediating the freeze response. According to their analysis, the evidence "does not support a role of the 'dorsal vagal complex' in freezing as proposed by the PVT" and the dorsal vagal complex "should not be linked to passive defensive behavior".
The vagus nerve (/ ˈ v eɪ. ɡ ə s / ), also known as the tenth cranial nerve , cranial nerve X , or simply CN X , is a cranial nerve that carries sensory and motor fibers. It creates a pathway that interfaces with the parasympathetic control of the heart , lungs , and digestive tract .
It is excited by visceral afferent impulses (sympathetic and vagal) arising from the gastrointestinal tract and other peripheral trigger zones, and by humoral factors. [2] The area postrema makes up part of the dorsal vagal complex, which is the critical termination site of vagal afferent nerve fibers , along with the dorsal motor nucleus of ...
Quarterback Jordan Love was also injured in the Bears game, hurting his elbow in the first half before being replaced by Malik Willis. Love warmed up and threw the ball on the sideline in the ...
The solitary nucleus receives general visceral and special visceral inputs from the facial nerve (CN VII), glossopharyngeal nerve (CN IX) and vagus nerve (CN X); it receives and relays stimuli related to taste and visceral sensation. It sends outputs to various parts of the brain, such as the hypothalamus, thalamus, and reticular formation ...
Podcast king Joe Rogan said Sunday the mysterious drones that have buzzed around the tristate area have left him “genuinely concerned” after watching a video that floated an unverified theory ...