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.
3. Mechanisms of insulin secretion from beta cells. The secretion of insulin from pancreatic beta cells is a complex process involving the integration and interaction of multiple external and internal stimuli. Thus, nutrients, hormones, neurotransmitters, and drugs all activate or inhibit insulin secretion.