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Anatomy GIT 206 > Extrahepatic Biliary System > Flashcards

Extrahepatic Biliary System Flashcards

1
Q

Enumerate Components of Extrahepatic biliary ducts

A

3 ducts + gall bladder
* Hepatic Duct(s)
* cystic duct
* Gall bladder

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2
Q

origin of right & left hepatic Duct

A

from Porta hepatis (most anterior structure)

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3
Q

Length of Common hepatic duct

A

3-4 cm

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4
Q

Course of Common hepatic duct

A
  1. forms as union of the 2 right & left hepatic ducts
    2.Descends in lesser omentum, where it is Anterior to Portal V & right to (proper) Hepatic A
    3.Ends by uniting with Cystic Duct to form Common bile duct
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5
Q

Length of Cystic duct

A

3-4 cm (same as common hepatic duct)

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6
Q

Origin of Cystic duct

A

Neck of Gall bladder

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7
Q

Cystic duct mucousa Projects inwards to —-

A

Form spiral valve that keeps duct open

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8
Q

Length of Common bile duct

A

3-4 inches

3-4 cm is Common Hepatic & cystic Ducts

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9
Q

Enumerate parts of Common bile duct

A

4 parts (seperated by duodenum):
* Supraduodenal
* Retroduodenal
* Infraduodenal
* Intraduodenal

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10
Q

Course of Supraduodenal Part of Common bile duct

A

passes in free border of lesser omentum, anterior to portal vein & right to hepatic A, seperated from IVC by Epiploic foramen

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11
Q

Course of retroduodenal part of Common bile duct

A

It descends behind second inch of 1st part of duodenum, in front of portal vein & right to Gastroduodenal A, seperated from IVC by the portal V

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12
Q

Course of Infraduodenal Part of Common bile duct

A

Descend behind head of Pancreas & in front of IVC

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13
Q

Explain how gall bladder is fixed to the liver

A
  • by visceral peritoneum around inferior surface of liver
  • Loose connective tissue containing Cystic A
  • Cystic veins from gall bladder to liver
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14
Q

Length of Gall bladder

A

3-4 inches long

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15
Q

Function of gall bladder

A

Concentrates bile 10 times & stores it

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16
Q

Anterior & posterior relations of fundus of gall bladder

A
  • Anterior: Anterior abdominal wall
  • Posterior: transverse colon
17
Q

Superior & inferior relations of body of gall bladder

A
  • Superior: inferior surface of liver (gall bladder fossa)
  • Inferior:
    1. transverse colon
    2. end of 1st part duodenum & begining of 2nd part
18
Q

Dilation present in neck of Gall bladder is called

A

Hartman’s pouch

19
Q

Superior & inferior relations of Neck of gall bladder

A
  • Superior: Cystic Artery (seperating gall bladder from liver)
  • inferior: 2nd inch of 1st. part of duodenum
20
Q

Arterial supply & venous drainage of gall bladder

A
  • Cystic A & many small arteries
  • Cystic Veins
21
Q

Nerve supply of Gall bladder

A
  • Parasympathetic: Vagus N (through Celiac plexus)
  • Sympathetic: greater spanchnic nerves (T-5-T9)

Anatomy GIT 206 (26 decks)

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