Common Hepatic Duct Flashcards

Study the common hepatic duct, including its formation, anatomical course, vascular relationships, tissue structure, and clinical significance.

Card 1 of 28Question

What is the common hepatic duct?

An extrahepatic bile duct that carries bile from the liver toward the common bile duct.

In This Section

1. What is the common hepatic duct?

An extrahepatic bile duct that carries bile from the liver toward the common bile duct.

2. Which two ducts unite to form the common hepatic duct?

The right and left hepatic ducts.

3. Where is the common hepatic duct formed?

Near the porta hepatis, at the confluence of the right and left hepatic ducts.

4. What is the approximate length of the common hepatic duct in adults?

Approximately 3 to 4 cm, although its length varies considerably.

5. What is the general direction of the common hepatic duct?

It descends from the hepatic duct confluence toward its junction with the cystic duct.

6. Which ligament contains most of the common hepatic duct?

The hepatoduodenal ligament.

7. Which two ducts unite to form the common bile duct?

The common hepatic duct and cystic duct.

8. What is the principal function of the common hepatic duct?

To transport bile produced by the liver toward the gallbladder or duodenum.

9. What is the usual position of the common hepatic duct relative to the portal vein?

Anterior and to the right of the portal vein.

10. Which major artery usually lies to the left of the common hepatic duct?

The proper hepatic artery.

11. What are the three principal structures of the portal triad within the hepatoduodenal ligament?

The portal vein, proper hepatic artery, and extrahepatic bile duct.

12. Which two structures form the medial and inferior boundaries of the hepatocystic triangle?

The common hepatic duct medially and the cystic duct inferiorly.

13. What forms the superior boundary of the hepatocystic triangle?

The inferior surface of the liver.

14. Which artery commonly passes posterior to the common hepatic duct?

The right hepatic artery, although its course varies.

15. What type of epithelium lines the common hepatic duct?

Predominantly simple columnar epithelium composed of cholangiocytes.

16. What is the primary function of cholangiocytes in the common hepatic duct?

To maintain the ductal epithelial barrier and modify bile composition through secretion and absorption.

17. What type of glands may be found in the wall of the common hepatic duct?

Peribiliary glands that secrete mucus.

18. Which arteries contribute to the blood supply of the common hepatic duct?

Small branches of the right hepatic, cystic, and other nearby hepatic arteries.

19. What is the peribiliary vascular plexus?

A network of small blood vessels surrounding and supplying the bile duct wall.

20. Where does venous blood from the common hepatic duct primarily drain?

Into the portal venous system through small peribiliary veins.

21. Which autonomic nerve plexus supplies the common hepatic duct?

The hepatic plexus, containing sympathetic and parasympathetic fibers.

22. Where does lymph from the common hepatic duct primarily drain?

To lymph nodes along the hepatic ducts and hepatic artery, with further drainage toward celiac nodes.

23. What is a low insertion of the cystic duct?

An anatomical variation in which the cystic duct joins the extrahepatic bile duct farther inferiorly than usual.

24. What is a trifurcation of the hepatic ducts?

A variant in which the right anterior, right posterior, and left hepatic ducts join at a common confluence.

25. Why is the common hepatic duct vulnerable during cholecystectomy?

Its proximity to the cystic duct creates a risk of misidentification, clipping, or transection.

26. What is Mirizzi syndrome?

Obstruction of the common hepatic duct by an impacted stone in the gallbladder neck or cystic duct, usually through external compression.

27. What can result from complete obstruction of the common hepatic duct?

Intrahepatic bile duct dilation and obstructive jaundice.

28. What is a common hepatic duct stricture?

An abnormal narrowing of the duct, often resulting from inflammation, fibrosis, or surgical injury.