gastric emptying

Mediated by... Parasympathetic fibres in myenteric plexus
Gastrin
Stimulation
Inhibition Presence of chyme++ in small intestine
Acidic or irritant chyme
Cholecystokinin (CCK) (opposing action of gastrin)
Secretin
Somatostatin

cephalic phase

Shortest phase
Stimulus sight/smell/taste of food
Mediated by... Parasympathetic fibres in myenteric plexus
Gastrin
Inhibition Cholecystokinin (opposing action of gastrin)
Acts on (action) Parietal cells → produce stomach acid
Gastric glands → release digestive juices

gastric phase