!Stomach
!!Anatomy overview
The stomach belongs to the ((Digestive - System Overview|digestive system)). It lies between the ((Digestive - Esophagus (Gullet) Overview|esophagus)) and the ((Digestive - Duodenum|duodenum)) (the first part of the ((Digestive - Small Intestine Overview|small intestine))). It is on the left upper part of the abdominal cavity. The top of the stomach lies against the ((Respiratory - Diaphragm|diaphragm)). The stomach has four sections: 
*the __((Digestive - Esophagus Mucosa (lower part) and LES|cardia ))__where the contents of the esophagus empty into the stomach
*the __((Digestive - Stomach - Mucosa (Fundus and Great Curvature)|fundus))__ formed by the upper curvature
*the __corpus__ between the ((Digestive - Stomach - Mucosa (Lesser Curvature and Pylorus)|lesser)) and the ((Digestive - Stomach - Mucosa (Fundus and Great Curvature)|greater curvature))
*the __((Digestive - Stomach - Mucosa (Lesser Curvature and Pylorus)|pylorus))__, the lower section of the organ that facilitates emptying the contents into the small intestine.

Lying behind the stomach is the ((Digestive - Pancreas Gland|pancreas)). The ((Digestive - Visceral Fascia - Greater Omentum (Epiploon)|greater omentum)) hangs down from the greater curvature. Two sphincters keep the contents of the stomach contained. They are the __esophageal sphincter__ or ((Digestive - Esophagus Mucosa (lower part) and LES|LES)) (found in the cardiac region, not an anatomical sphincter) dividing the tract above, and the __((Digestive - Stomach - Mucosa (Lesser Curvature and Pylorus)|pyloric sphincter ))__dividing the stomach from the small intestine.

The stomach is surrounded by parasympathetic (stimulant) and orthosympathetic (inhibitor) plexuses (networks of ((Circulatory - Arteries|blood vessels)) and ((Nervous - System Overview|nerves)) in the anterior gastric, posterior, superior and inferior, celiac and myenteric), which regulate both the secretions activity and the motor (motion) activity of its muscles.

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!!Brain
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!!!Relay:
*__Brain Stem__ (+/-) dorso-lateral right, for ((Digestive - Stomach - Mucosa (Fundus and Great Curvature)|Stomach Mucosa/Secretory Glands)) and
*__Midbrain__ (+/0) dorso-lateral right, for ((Organ Walls - Smooth Muscle Layer|Smooth Muscle Layer))
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*__Cerebral Medulla__ (-/+) medial right (& left): for ((Organ Walls - Submucosa Layer|Stomach - Submucosa)), ((Musculoskeletal - Connective Tissue|Connective Tissue)) Layer
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*__Cerebral Cortex__ (-/+) insular region mediolateral right "4 o'clock-relay": for ((Digestive - Stomach - Mucosa (Lesser Curvature and Pylorus)|Mucosa in Lesser Curvature and Pylorus))
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