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 body is in contact with the liver, lying in the gallbladder fossa, a depression at the bottom of the liver. The neck tapers and is continuous with the cystic duct, part of the biliary tree. The cystic duct unites with the common hepatic duct to become the common bile duct.he gallbladder is a hollow organ that sits just beneath the right lobe of the liver. In adults, the gallbladder measures approximately 8 centimetres (3.1 in) in length and 4 centimetres (1.6 in) in diameter when fully distended. The gallbladder has a capacity of about 100 mL.