The extrahepatic biliary apparatus collects bile from the liver, stores it in the gallbladder, and transmits it to the duodenum. It consists of the right and left hepatic ducts, common hepatic duct, gallbladder, cystic duct, and bile duct. The right and left hepatic ducts emerge from the liver and join to form the common hepatic duct, which then joins with the cystic duct from the gallbladder to form the bile duct that transports bile to the duodenum.

1. Anatomy
Of
Extra hepatic biliary
apparatus
Dr shaista
Dr shaista

3. Extra hepatic biliary apparatus collect bile from
liver Store in gallbladder
And
Transmit it from 2 nd part of duodenum
Extra hepatic biliary apparatus
Apparatus consists of
•
•
•
•
•
1 right and left hepatic ducts
2 common hepatic ducts__
3 gallbladder
4 cystic duct
5 Bile duct

4. Right and left
hepatic
ducts
Emerge at
porta hepatis
from right and
left lobe of
liver

5. Common
hepatic
ducts
Formed by
union of right
and left
hepatic ducts
near the right
end of porta
hepatic

6. Gall
bladder
Pear shape
reservoir of bile
Situated in fossa
in inferior surface
of lright lobe of
liver
Gallbladder is
divided into
Funds
Body
Neck

7. Cyctic
ducts
Cystic ducts is about 3 _4 CM
Behind the the neck of gall
bladder
Runs down ward and back
ward
End by joining the common
hepatic ducts

8. Bile duct
Formed by union
of cystic and
common hepatic
ducts near the
porta hepatis
8 CM long
6 mn in diameter

9. Blood supply
1_Cystic artery is the chief source of blood supply
And distributed to gallbladder the cystic ducts the hepatic
ducts and upper part of bile ducts

14. Applied anatomy
Of gallbladder
1 cholecystitis
2-Cholelithiasis
3 - Cholecystography
4-cholecystectomy