1 GALLBLADDER. Vesica biliaris (fellea). 812 cm long, pear-shaped reservoir for bile. A

2 Fundus of gallbladder. Fundus vesicae biliaris. Caudally directed rounded end of gallbladder. A

3 Body of gallbladder. Corpus ves. biliaris. Portion of gallbladder between the fundus and neck. A

4 Neck of gallbladder. Collum vesicae biliaris. The portion of the gallbladder continuous with the cystic duct. A

5 Tunica serosa. Peritoneal lining of the gallbladder. B

6 Tela subserosa. Connective tissue underlying the peritoneum. B

7 Tunica muscularis. Muscle layer in the wall of the gallbladder. B

8 Tunica mucosa. Mucous membrane of gallbladder with simple columnar epithelium comprised of tall prismatic cells. B

9 Plicae mucosae. Mucosal folds that project into the lumen, thus producing a loculate relief pattern. A B

10 Cystic duct. Ductus cysticus. Duct that drains the gallbladder. It joins the common hepatic duct to form the common bile duct (ductus choledochus). A

11 Spiral fold. Plica spiralis. A spiral elevation in the neck of the gallbladder and the cystic duct. A

12 Bile duct. Ductus choledochus (biliaris). Duct formed by the union of the cystic duct and common hepatic duct; it passes into the greater duodenal papilla. A

13 Sphincter muscle of bile duct. M. sphincter ductus choledochi. Thickened, annular muscle that forms sphincter directly before the hepa-topancreatic ampulla. A

14 Hepatopancreatic ampulla. Ampulla hepato-pancreatica. Dilatation in the wall of the duodenum immediately after the opening of the pancreatic duct into the bile duct. A

15 M. sphincter ampullae hepatopancreaticae (sphincter ampullae). Thickened annular sheath of muscle that invests the ampulla (sphincter of Oddi). A

16 Biliary glands. Gll. biliares. Mucous glands in the wall of the biliary excretory ducts.

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