The stomach can be divided inte three anatomic regions and two functional regionS (B A B Fundus orus Antrum Gastric pump Gastric reservoir orpus Phasic contractions Tonic contractions 55 The stomach can be divided into three anatomic regions (A) and two functional regions (B) Gastric reservoir Tonic contractions Gastric pump Phasic contractions B Fundus Corpus Antrum Pylorus A