<prompt> HCI Secretion in gastric phase is increases byPepsinogenCCKGastrinSecretin  <response>: Ans. c GastrinRef: Ganong, 25th edp.457Three major factors that increase gastric acid secretion are,Histamine - paracrine factor released from a nearby ECL cellGastrin - Endocrine factor Released by G cells into blood that reaches parietal cellsAcetylcholine - Neurocrine factor released by vagal nerve endings 