Liver A&P Flashcards

1
Q

is the liver an intraperitoneal or retroperitoneal organ?

A

intraperitoneal

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2
Q

liver measurement in SAG

A

13 to 15cm

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3
Q

liver measurement in TRV

A

21 to 22.5cm

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4
Q

what divides the RLL into anterior and posterior segments?

A

RHV
RI Fissure
RPV

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5
Q

what divides the LLL into lateral and medial segments?

A

LHV
LI Fissure
LPV
Lig Teres
Falciform Ligament

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6
Q

the ligamentum teres is the remnant of the

A

umbilical vein

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7
Q

the ligamentum venosum is the remnant of the _____

A

ductus venosum

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8
Q

the falciform ligament attaches the liver to the ______

A

anterior abdomen wall

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9
Q

the coronary ligament attaches the liver to the ______

A

diaphragm

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10
Q
A
  1. caudate lobe
  2. left lateral superior
  3. left lateral inferior
    4a. left medial superior
    4b. left medial inferior
  4. right anterior inferior
  5. right posterior inferior
  6. right posterior superior
  7. right anterior superior
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11
Q

portal vein diameter should be

A

less than 13mm

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12
Q

portal veins exhibit ________ flow and have _______, ______ walls

A

hepatopetal flow
thick, echogenic walls

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13
Q

hepatic veins exhibit ________ and _________ flow

A

hepatofugal and triphasic flow

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14
Q

aspartate aminotransferase (AST)

A

levels are proportional to the amount of damage and time between cell injury and testing

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15
Q

an increase in AST levels indicates

A

necrosis

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16
Q

alanine aminotransferase (ALT)

A

more specific indicator of liver damage

17
Q

an increase in alkaline phosphatase (ALP) indicates

A

obstruction

18
Q

an increase in conjugated (direct) bilirubin indicates

A

obstruction

19
Q

a decrease in unconjugated (indirect) bilirubin indicates

A

hepatocellular disease

20
Q

an increase in total bilirubin with a decrease in hemoglobin indicates

A

hemolysis (destruction of RBCs)

21
Q

what does albumin do?

A

keeps fluid in the bloodstream

22
Q

decrease albumin levels indicate

A

liver or kidney problems

23
Q

an increase in alpha fetoprotein (AFP) levels indicate

A

cancerous liver tumors

24
Q

prothrombin time

A

determines and measures how long it takes for blood to clot

25
Q

average PTT is

A

11 to 13.5 seconds

26
Q

an increase in PTT indicates

A

metastasis and hepatitis

27
Q

a decrease in PTT indicates

A

extrahepatic duct obstruction

28
Q

an increase in lactic acid dehydrogenase (LDH) indicates

A

tissue damage

29
Q

what are the 7 functions of the liver

A
  1. metabolism - carbs, lipids, proteins
  2. vitamin and mineral storage
  3. synthesis and secretion of bile
  4. removal of waste products
  5. blood reservoir
  6. lymph production
  7. detoxification
30
Q

what transducer is best for a liver ultrasound?

A

3.0 to 5.0MHz curved

31
Q

the liver parenchyma should be isoechoic to slightly hyperechoic to the ________

A

kidneys

32
Q

the liver parenchyma should be slightly hypoechoic to the ________

A

spleen

33
Q

venous drainage of the caudate lobe is via

A

emissary veins

not seen unless there is pathology

34
Q

direction of fetal circulation (4)

A

umbilical vein (Lig Teres)
LPV
ductus venosus (Lig Venosum)
IVC

35
Q

SGOT is the old term for

A

AST

36
Q

SGPT is the old term for

A

ALT

37
Q

increased GGT + increased ALP =

A

biliary obstruction

38
Q

increased GGT + increased ALT =

A

hepatocellular disease