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Because of your brain's connection to the stomach through the Enteric Nervous System and the stomach's involvement in digestion, stress is also a common irritant of the digestive system.
Layers of the Alimentary Canal.The wall of the alimentary canal has four basic tissue layers: the mucosa, submucosa, muscularis, and serosa. The enteric nervous system in humans consists of some 500 million neurons [11] (including the various types of Dogiel cells), [1] [12] 0.5% of the number of neurons in the brain, five times as many as the one hundred million neurons in the human spinal ...
The stomach has a third layer: an innermost oblique layer. The physical contractions of the smooth muscle cells can be caused by action potentials in efferent motor neurons of the enteric nervous system, or by receptor mediated calcium influx. [1] These efferent motor neurons of the enteric nervous system are cholinergic and adrenergic neurons. [2]
The digestive system has a complex system of motility and secretion regulation which is vital for proper function. This task is accomplished via a system of long reflexes from the central nervous system (CNS), short reflexes from the enteric nervous system (ENS) and reflexes from GI peptides working in harmony with each other. [4]
In addition to medication, going to therapy has helped me regulate my nervous system and process everything that I have been through, including medical gaslighting. I’ve become more comfortable ...
The gut has intrinsic peristaltic activity (basal electrical rhythm) due to its self-contained enteric nervous system. The rate can, of course, be modulated by the rest of the autonomic nervous system. The layers are not truly longitudinal or circular, rather the layers of muscle are helical with different pitches.
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The enteric nervous system also makes use of more than 30 neurotransmitters, most of which are identical to the ones found in CNS, such as acetylcholine, dopamine, and serotonin. More than 90% of the body's serotonin lies in the gut, as well as about 50% of the body's dopamine; the dual function of these neurotransmitters is an active part of ...