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Anatomy (ISAC + MGA) > MGA 2018 Exam II -Liver, Gall Bladder, Hepatic Portal System > Flashcards

MGA 2018 Exam II -Liver, Gall Bladder, Hepatic Portal System Flashcards

1
Q

How do you define Cantlie’s Line on the liver?

A

Make a plane (line) between the Inferior Vena Cava and the gallbladder fossa

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2
Q

What surgical segment of the liver is the caudate lobe?

A

I

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3
Q

Which surgical segments of the liver comprise the left lobe?

A

II and III

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4
Q

Which surgical segments of the liver comprise the right lobe?

A

IV-VIII

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5
Q

How do you number the 8 surgical segments of the liver?

http://youtu.be/T5yXGzDCtZE

A

Starting with caudate lobe in the back (#1), move to the top left lobe and count clockwise. The falciform ligament (and ligamentum teres) at the left sagittal fissure will separate #’s 4-8 from the left lobe segments

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6
Q

What theoretical line separates the functional or “true” right and left lobe of the liver?

A

Cantlie’s Line

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7
Q

Of the total blood volume entering the liver, what percentage is supplied by the proper hepatic artery to feed the liver itself?

A

25%

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8
Q

Of the total blood volume entering the liver, what percentage is delivered by the hepatic portal vein for processing?

A

75%

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9
Q

What are replaced arteries?

A

Arteries originating from a different vessel than normal

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10
Q

What are accessory arteries?

A

An additional branch of an otherwise normal artery

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11
Q

A replaced right hepatic artery comes from?

A

Superior Mesenteric Artery

SMA

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12
Q

A replaced left hepatic artery comes from?

A

Left Gastric Artery

of Celiac Trunk

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13
Q

A completely replaced proper hepatic artery comes from?

A

Superior Mesenteric Artery

SMA

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14
Q

An accessory right hepatic artery comes from?

A

SMA

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15
Q

An accessory left hepatic artery comes from?

A

Left Gastric Artery

of Celiac Trunk

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16
Q

Starting from the Celiac Trunk complete the arterial branching pattern: ___?____a. –> Proper hepatic a. –> R,L hepatic aa.

  • (a=artery, aa=arteries)
A

Hepatic

17
Q

Celiac Trunk –> Common Hepatic a. –> __?__ a. –> R,L hepatic aa.

A

Proper Hepatic

18
Q

Proper Hepatic a.–> Right Hepatic a. –> ______? a. –> Gallblader

A

Cystic artery

19
Q

What is the hepatocystic triangle AKA Triangle of Calot?

A

An area bordered by the liver, cystic duct and common hepatic duct. The cystic artery is located within.

20
Q

What are the 3 Hepatic veins?

A

Right, Middle, and Left

21
Q

What segments of the liver does the right vein drain?

A

5,6,7,8

*directly to IVC

22
Q

What segments of the liver does the left vein drain?

A

2 & 3

*joins with the middle v. into a common trunk and then to IVC

23
Q

What segments of the liver does the middle vein drain?

A

4 and some overlapping 5&8

*joins with the left v. into a common trunk and then to IVC

24
Q

What is the hepatic triad?

A

Hepatic Portal Vein, Common Bile Duct, Proper Hepatic A.

25
Q

What is the relationship of the hepatic triad structures to one another? (posterior/lateral/medial)

A

Hepatic Portal Vein=posterior
Bile Duct=lateral
Proper Hepatic Artery=medial

26
Q

What are the ligaments of the liver?

A
  1. Falciform
  2. Round (or ligamentum teres)
  3. Coronary (upper/anterior and lower/posterior)
    * R/L triangular ligaments are where the edges of the coronary lig. meet.
27
Q

Describe the areas of contact from other organs on the visceral surface of the liver

A
  1. suprarenal impression (right adrenal gland)
  2. renal impression (right kidney)
  3. duodenal impression
  4. gastric impression
    * bare area is where liver contacts diaphragm
28
Q

During development, the LARGER part of the liver bud is caudal or cranial?

A

cranial

29
Q

During development, the falciform ligament is attached to the anterior body wall and is referred to as . . .?

A

ventral mesogastrium

30
Q

During development, the SMALLER part of the liver bud is caudal or cranial?

A

caudal

31
Q

During development the ligamentum teres (or round ligament) carries oxygenated blood from the placenta through the umbilicus and is referred to as . . .?

A

umbilical vein

ligamentum teres is obliterated umbilical v.

32
Q

During development the stalk of the diverticulum (liver bud) will later become . . .?

A

cystic duct

33
Q

During development the stalk connecting hepatic and cystic ducts will become the . . .?

A

common bile duct

34
Q

Name the 5 parts of the gallbladder

A
  1. fundus
  2. body
  3. infundibulum
  4. neck
  5. cystic duct
35
Q

Name the parts of the common bile duct

A
  1. supraduodenal
  2. retroduodenal
  3. pancreatic
  4. intramural
36
Q

Common bile duct + ___?___ join to form the hepatopancreatic ampulla (of Vater); together empty to major duodenal papilla

A

Major pancreatic duct (of Wirsung)

37
Q

The hepatopancreatic ampulla of Vater is controlled by which sphincter?

A

Oddi

38
Q

Right hepatic duct + Left hepatic duct join to form . . .?

A

Common Hepatic Duct

39
Q

Cystic duct meets ______ to form the Common bile duct.

A

Common Hepatic Duct

Anatomy (ISAC + MGA) (3 decks)

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