Although its name may sound lighthearted, restless leg syndrome (RLS) can be a troubling disorder. Symptoms include itching, burning, or aching in the legs, particularly when youâre at rest, and an overwhelming desire to move your legs.
secretin. a hormone secreted by the mucosa of the duodenum and jejunum when acid chyme enters the intestine; carried by the blood, it stimulates the secretion of pancreatic juice and, to a lesser extent, bile and intestinal secretion.secretin test. hormone, formed by the epithelial cells of the duodenum under the stimulus of acid contents from the stomach, which incites secretion of pancreatic juice; used as a diagnostic aid in the diagnosis of pancreatic exocrine disease and as an adjunct in obtaining desquamated pancreatic cells for cytologic examination.
CCK mediates digestion in the small intestine by inhibiting gastric emptying and decreasing gastric acid secretion. It stimulates the acinar cells of the pancreas to release digestive enzymes and stimulates the secretion of a juice rich in pancreatic digestive enzymes, hence the old name pancreozymin.CK is very similar in structure to gastrin, another of the gastrointestinal hormones. CCK and gastrin share the same five amino acids at their C-termini. Most CCK peptides have a sulfate-group attached to the tyrosine in position 7 in the C-terminus.