APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -The entry of partially digested acidic chyme into the duodenum stimulates specialized mucosal cells to release two important polypeptide hormones into blood; secretin (from duodenal S cells), and cholecystokinin (CCK, from duodenal I cells).

Detailed explanation-2: -Digestive Phases The first phase of ingestion, called the cephalic phase, is controlled by the neural response to the stimulus provided by food. All aspects-such as sight, sense, and smell-trigger the neural responses resulting in salivation and secretion of gastric juices.

Detailed explanation-3: -Gastrin, secretin, and cholecystokinin (CCK) were the first discovered gut hormones, and as of today, there are more than 50 gut hormone genes and a multitude of bioactive peptides, which makes the gut as the largest endocrine organ of the body.

Detailed explanation-4: -When chyme enters the duodenum, the hormonal responses trigger the release of bile, which is produced in the liver and stored in the gallbladder. These small globules are widely distributed in the chyme rather than forming large aggregates.