MRCP UK EXAMINATIONS

Detailed explanation-1: -Adaptive relaxation is a reflex in which the fundus of the stomach dilates in response to small increases in intragastric pressure when food enters the stomach. Receptive relaxation is a reflex in which the gastric fundus dilates when food passes down the pharynx and the esophagus.

Detailed explanation-2: -The gastric cardia is defined as the proximal area of the stomach and is demarcated proximal by the squamocolumnar mucosal boundary (Z-line) and distal by the oxyntic mucosa from the fundus and corpus.

Detailed explanation-3: -Accommodation of the stomach to a meal consists of a relaxation of the proximal stomach, providing the meal with a reservoir and enabling a volume increase without an increase in pressure.

Detailed explanation-4: -We conclude that, contrary to general opinion, the proximal stomach plays an important role in the control of gastric emptying of solids while the distal stomach is important in the emptying of nutrient liquids.