liver classification nomenclature

Question 1

divisions of the liver include (5)

Answer 1

lobes
divisions 
sectors 
segments 
subsegments

Question 2

the right and left hepatic LOBES are divided by oblique imaginary border drawn between the ______and ________. And marks the division of what vessel?
*this vessel division is categorized as what ?

Answer 2

gallbladder and the inferior vena cava

MPV is divided into RPV and LPV at this plane (TRV)

cat. as 1st order division of the PV

Question 3

AKA for hepatic lobes

Answer 3

hemilivers ( hemi = half )

Question 4

The hemiliver imaginary border transects what four structures to create the right and left lobes of the liver?

Answer 4

inferior vena cava
middle hepatic vein
gallbladder
bifurcation of the main portal vein to rt and lft branches

Question 5

second order of division seperates the liver into different _______ or AKA _________

Answer 5

segments /// sectors

Question 6

right and left lobes are further divided by __________ into ___ separate parts and run in what plane

Answer 6

hepatic veins
4 (segments)
longitudinal

Question 7

the 4 segments are further divided by the second branching of the

Answer 7

Portal Veins

Question 8

the 4 sectors are

Answer 8

left lateral
left medial
right anterior
right posterior

Question 9

left lateral sector contains segments __ &__

Answer 9

II , III

Question 10

left medial sector contains segments __ & __

Answer 10

IVa , IVb

Question 11

right anterior sector contains segments __&__

Answer 11

V, VIII

Question 12

right posterior sector contains segments ___ &___

Answer 12

VI , VII

Question 13

the caudate lobe is segment ___ and is supplied by _____ and drained by______

Answer 13

I , both right and left portal veins , emissary veins

Question 14

where do the emissary veins drain

Answer 14

directly into IVC

Question 15

the caudate lobe is :

_____ to ligamentum venosum
_____ to porta hepatis
_____ &____ to IVC
_____ to the lesser sac of the sto

Answer 15

posterior
posterior
anterior and medial
lateral

Question 16

hepatic veins divide the liver _______, into ___ parts

Answer 16

longitudinally , 4

Question 17

the parts divided by the hepatic veins are further divided _______–by a _______ , where the _____divides into _________

Answer 17

transversely, imaginary plane where the MPV divides into the right and left portal vein

Question 18

segment/ sub segment division:
name the subsegment name to the number
 I
II
III
IVa
IVb
V
VI
VII
VIII

Answer 18

caudate lobe
 lft lat superior 
lft lateral inferior
lft medial superior
lft medial inferior 
rt anterior inferior
rt posterior inferior 
rt posterior superior 
rt anterior superior

Question 19

when imaging the liver either subcostal or intercostal in the transverse plane and angeling superior what liver segments are visable

Answer 19

VII, VIII, IVa, and II

Question 20

either subcostal or intercostal imaging in transv plane of the liver and angeling inferior what liver segments are seen

Answer 20

VI, V, IVb, III