Liver Anatomy

Question 1

define the diff between intersegmental vs intrasegmental

Answer 1

inter - between
Hepatic veins
hepatic veins course between the lobes and segments

intra - within
Portal Triad
portal triad courses into the center of each segment

Question 2

AKA for intersegmental / interlobar vessles

Answer 2

hepatic veins

Question 3

portal triad is encased by ____________

Answer 3

fibro-fatty sheath (glisssons capsule) giving it hyperechoic walls

Question 4

portal triad vessles (3)

Answer 4

main portal vein
proper hepatic artery
common hepatic duct

Question 5

the vessels of the porta hepatis are contained within what ligament

Answer 5

hepatoduodenal lig.

Question 6

Name the hepatic fissures : (3)

Answer 6

main lobar fissure
right intersegmental fissure
left intersegmental fisure

Question 7

the main lobar fissure divides the liver how ?

and is also refereed to as what

Answer 7

right and left lobes

MLF aka- cantlie line, midplane of the liver

Question 8

landmarks of the MLF (3)

Answer 8

Gallbladder (inferior end of the MLF)
IVC
middle hepatic vein

Question 9

what plane between what and what forms the MLF

Answer 9

oblique plane between the ivc and the galbladder fossa

Question 10

the MLF divides the _____seg. of the right lobe form the _____ medial seg. of the left lobe .

Answer 10

anterior segment of the right lobe

medial segment of the left lobe

Question 11

Right Intersegmental Fissure divides the ____ lobe into which 2 segments

Answer 11

right , anterior seg. and posterior seg.

Question 12

what is the landmark for the right intersegmental fissure

Answer 12

right hep. vein

Question 13

Left intersegmental fissure divides the ____ lobe of the liver ______ and _____ segs

Answer 13

left lobe into medial and lateral segments

Question 14

Landmarks for the left intersegmental fissure

Answer 14

left hepatic vein
ascending left portal vein
falciform ligament
ligamentum teres

Question 15

ligamentum venosum is remant of __________

Answer 15

ductus venosus

Question 16

lig. venosum seperates what 2 structures

Answer 16

left lobe form the caudate lobe

Question 17

ligamentum venosum is located at the ____ ____ margin of the ____ lobe

Answer 17

left anterior margin of the caudate lobe

Question 18

ligamentum terries is located

Answer 18

@ left intersegmental fissure

Question 19

lig. teres divides the _____ aspect of the ___lobe into _____ and _____ segments

Answer 19

caudal aspect of left lobe into medial and lateral segments

Question 20

lig. teres is a remnant of the

Answer 20

umbilical vein

Question 21

umbilical vein runs from _____ to _____

Answer 21

umbilicus to the left portal vein

Question 22

what possibly happens to lig teres in cases of portal HTN

Answer 22

lig. teres recanalizes to form a portosystemic venous collateral

Question 23

lig. venosus runs from the _______ to the ______ separtating the ________ from the ________

Answer 23

lft portal vein to the IVC separating the lft lobe from the caudate lobe of the liver

Question 24

Direction of fetal circulation (4)

Answer 24

umbilical vein (teres) — lft portal vein—- ductus venosus (lig. venosum) — IVC

Question 25

Falciform lig is a ________ and is created by ______–

Answer 25

falciform ligament is a peritoneal fold / reflection and is created by passage of the embryonic umbilival vein from the umbilicus to the left branch of the portal vein

Question 26

coronary ligament is a __________ which provides what function

Answer 26

peritoneal reflection/fold

coronary ligament suspends the liver from the diaphragm

Question 27

the coronary ligament surrounds the ______ where the _____is in direct contact with the liver

Answer 27

the coronary ligament surrounds the bare area,

in the bare area the diaghragm is in direct contact with the liver

Question 28

the bare area is not a part of what , and therefore will not contain

Answer 28

peritoneal space and will not contain ascites

Question 29

right & left triangular ligament are __________ and are located ______in relation to the bare area

Answer 29

peritoneal reflections

to the far right and left of the bare area