Ads
related to: vagus nerve connection between brain and gut
Search results
Results From The WOW.Com Content Network
They are connected to the brain through the vagus nerve, which seems to be the main mediator of gut-brain communication. [16] Around 90% of the vagus nerve fibers connecting the brain and the ENS are afferent, meaning that the brain receives more information from the digestive system than it sends out. [ 17 ]
The vagus nerve is also responsible for regulating inflammation in the body, via the inflammatory reflex. [7] Efferent vagus nerve fibers innervating the pharynx and back of the throat are responsible for the gag reflex. In addition, 5-HT 3 receptor-mediated afferent vagus stimulation in the gut due to gastroenteritis is a cause of vomiting. [8]
The gut microbiota also release molecules that can directly activate the vagus nerve, which transmits information about the state of the intestines to the brain. [ 32 ] Likewise, chronic or acutely stressful situations activate the hypothalamic–pituitary–adrenal axis , causing changes in the gut microbiota and intestinal epithelium , and ...
The findings align with prior research suggesting that misfolded alpha-synuclein proteins may spread from the gut to the brain via the vagus nerve, offering further support for the hypothesis that ...
The ENS is nicknamed the "second brain". [2] [3] It is derived from neural crest cells. [4] [5] The enteric nervous system is capable of operating independently of the brain and spinal cord, [6] but is thought to rely on innervation from the vagus nerve and prevertebral ganglia in healthy subjects.
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.
There are many gustatory nuclei in the brain stem. Each of these nuclei corresponds to three cranial nerves, the facial nerve (VII), the glossopharyngeal nerve (IX), and the vagus nerve (X) [3] and GABA is the primary inhibitory neurotransmitter involved in its functionality. [4]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!