Liver

Question 1

the liver is what

Answer 1

the largest organ

Question 2

located in which quadrant and region

Answer 2

RUQ, right hypochondrium, epigastrium, possibly left hypochondrium

Question 3

bounded superiorly by what

Answer 3

diaphragm

Question 4

most of the liver lies beneath the

Answer 4

right costal margin

Question 5

what surfaces of the liver are in contact with the diaphragm

Answer 5

superior
anterior
portions of the posterior

Question 6

where does the inferior surface have contact with

Answer 6

upper abdominal organs

Question 7

what indents the posterior surface

Answer 7

right kidney

Question 8

what major vessel is directly posterior to the liver

Answer 8

IVC

Question 9

why is noting the position of the liver important

Answer 9

pathology may alter its shape and position

Question 10

displacement of the liver caudally may be due to

Answer 10

tumors
cirrhosis
subphrenic abscesses

Question 11

displacement of the liver cranially may be due to

Answer 11

abdominal tumor
ascites
excessive dilation of the colon

Question 12

does the liver vary in shape and size depending on the body habitus of the patient

Answer 12

yes

Question 13

generally how much bigger is the right lobe compared to the left

Answer 13

2-3 times

Question 14

the right lobe extends further

Answer 14

inferiorly

Question 15

the left lobe will vary in

Answer 15

size and shape

Question 16

what is often the appearance of the left lobe

Answer 16

wedge shape

flag shape

Question 17

what is the average weight of a male liver

Answer 17

1400-1600 g

Question 18

what is the average weight of the female liver

Answer 18

1200-1400 g

Question 19

the liver is enlarged if the right lobe extends past where

Answer 19

below the lower pole of the right kidney

Question 20

what is the exception to liver enlargement

Answer 20

reidels lobe

Question 21

what is the normal length mesurement of the liver

Answer 21

= 15.5cm

Question 22

where is the length measurement taken

Answer 22

midclavicular line

from diaphragm to inferior edge

Question 23

what is the normal AP measurement of the liver

Answer 23

8.1cm +/- 1.9cm

Question 24

where is the AP measurement taken

Answer 24

midpoint of the length measurement

Question 25

what is the normal ratio of the caudate to right lobe ratio

Answer 25

<0.65

Question 26

where is the caudate/right lobe ratio taken

Answer 26

subcostal in a true transverse plane

Question 27

why is a caduate to right lobe ratio used

Answer 27

for liver cirrhosis

Question 28

what is a reidels lobe

Answer 28

tongue-like extension of the inferior tip of the right lobe of the liver

Question 29

when is a reidels lobe usually identified

Answer 29

in slim females

Question 30

what are the two methods of dividing the liver

Answer 30

anatomical | functional

Question 31

what is the method of dividing the liver that is used in ultrasound

Answer 31

functional

Question 32

what is the anatomical method based on

Answer 32

external markings

Question 33

what are the borders of the anatomical method

Answer 33

falciform ligament | "h" configuration

Question 34

what divides the right and left lobes anteriorly using the anatomical method

Answer 34

falciform ligament

Question 35

in the anatomical method where does the caudate lobe lie between

Answer 35

IVC ligamentum venosum portal vein

Question 36

in the anatomical method where defines the quadrate lobe

Answer 36

porta hepatis gallbladder fossa ligamentum teres

Question 37

what is the functional method based on

Answer 37

blood supply | bilary drainage

Question 38

what are the significant landmarks of the functional method

Answer 38

ligaments fissures gallbladder

Question 39

the functional method divides the liver into

Answer 39

3 lobes | 4 segments

Question 40

in the functional method the right lobe is divided into what segments

Answer 40

anterior | posterior

Question 41

in the functional method the left lobe is divided into what segments

Answer 41

medial | lateral

Question 42

what is another name for the medial segment in the functional method

Answer 42

quadrate

Question 43

what are the three lobes the functional method divides into

Answer 43

right left caudate

Question 44

in the functional method the right and left portal veins course how through the segements

Answer 44

within

Question 45

what is another way of saying coursing within the segments

Answer 45

intrasegmental

Question 46

in the functional method the right and left hepatic veins course how through the segments and lobes

Answer 46

between

Question 47

what are the other ways to say course between the lobes and segments

Answer 47

intersegmental | interlobar

Question 48

the right lobe is seperated from the left lobe by what fissure

Answer 48

main lobar

Question 49

superiorly which vessel courses through the MLF

Answer 49

middle hepatic vein

Question 50

the right lobe is divided into anterior and posterior segments by which fissure

Answer 50

right intersegemental

Question 51

what vessels course within the right intersegmental fissure

Answer 51

right hepatic and portal vein

Question 52

the anterior right portal vein courses within what portion of the liver

Answer 52

anterior right lobe

Question 53

the posterior right portal vein courses within what portion of the liver

Answer 53

posterior right lobe

Question 54

the left lobe is divided into medial and lateral segments by which fissure

Answer 54

left intersegmental

Question 55

which vessels course with the left intersegmental fissure

Answer 55

left hepatic vein | ascending left portal vein

Question 56

the medial left lobe is the the segment that was which considered which lobe

Answer 56

quadrate lobe

Question 57

the medial left portal vein courses within what portion of the liver

Answer 57

medial left lobe

Question 58

the lateral left portal vein courses within what portion of the liver

Answer 58

lateral left lobe