Electrical Enclosure Comparisons of NEMA and UL Type Rating Standards. When it comes to electrical safety in the USA there are two main organizations who set safety standards: NEMA (the National Electrical Manufacturers Association) and UL (Underwriters Laboratories). NEMA is the association of electrical equipment and medical imaging manufacturers in the United States.
View of the Liver and Gallbladder. Bile empties from the gallbladder into the common bile duct. The common bile duct joins with the pancreatic duct to form the ampulla of Vater, which empties into the duodenum. Before joining the pancreatic duct, the common bile duct tapers to a diameter of â¤ 0.6 cm. The sphincter of Oddi, which surrounds both the pancreatic duct and the common bile duct, includes a sphincter for each duct. Bile does not normally flow retrograde into the pancreatic duct.
The cystic duct connects the top of the gallbladderâs neck to the common hepatic duct. It then joins the common bile duct, which meets pancreatic duct before it empties into the duodenum.In the average adult, the cystic duct measures four centimeters in length.The gallbladder stores bile produced in the liver.In order to enter into the duodenum, bile must travel out of the gallbladder, through the cystic duct's spiral valve, and into the common bile duct. Along with fluid from the pancreas, the bile enters the duodenum through the ampulla of vater.he gallbladder stores bile produced in the liver. In order to enter into the duodenum, bile must travel out of the gallbladder, through the cystic duct's spiral valve, and into the common bile duct. Along with fluid from the pancreas, the bile enters the duodenum through the ampulla of vater.