calculated weight of islet beta cells in duodenal region of pancreas duodenal region pancreatic beta cell weight calculated as the product of pancreas duodenal region weight and corresponding beta cell fractional area 2013-10-14T15:24:56Z A calculated measurement in which the weight, that is, the heaviness or the force with which a body is drawn toward earth by gravity, of the beta cells in the head region of the pancreas is derived by multiplying the weight of the entire head region of the pancreas by this fraction: [average cross-sectional area of pancreatic islet beta cells in the head region divided by average cross-sectional area of the head region of the pancreas]. The head region of the pancreas is the portion of the pancreas which lies closest to the duodenum, the first segment of the small intestine. The pancreas is the elongated, racemose gland containing both endocrine and exocrine elements which secretes hormones such as insulin and glucagon internally and digestive enzymes externally. A pancreatic islet is a small encapsulated region of the pancreas containing endocrine (i.e., hormone-producing) cells. An islet beta cell is a membrane-enclosed protoplasmic mass constituting the smallest structural unit of an organism that is capable of independent functioning, which is found in a pancreatic islet and produces the hormones insulin and amylin. Area is the value representing the size of the two-dimensional extent of an object. CMO:0001820 JSmith VT:0005217 clinical_measurement_ontology