The Liver Lobes and Segments Flashcards
liver covered by _____ and ______
Glisson’s capsule
visceral peritoneum
Is liver intra or retroperitoneal
intraperitoneal
functions of liver (3)
metabolic activities
production and secretion of bile
filtration of the blood
diaphragm in relation to liver
sup post ant
IVC aorta and spine in relation to liver
post
stomach spleen left kidney in relation to liver
left lateral
right kidney GB and right colon in relation to liver
inferior
2 surfaces of liver
diaphragmatic (touching diaphragm)
visceral (touching other organs)
what is the bare area (what, boundaries, grooves)
no peritoneum
boundaries formed by coronary land triangular ligaments
includes groove for IVC
what divided ant surface of liver
falciform ligament
2 methods of liver subdivisions
traditional
functional
traditional method of liver lobes
right
(separated. by falciform lig)
left
quadrate
caudate
what separates R/L lobe in functional method and what does it sonographically coincide with
imaginary line from GB to IVC
sonographically: MLF and MHV superiorly
what is right lobe divided into and by what (plus how is this seen sonographically) (functional method)
ant and post
right intersegmental fissure (seen as RHV/RPV)
what is left lobe divided into and by what (plus how is this seen sonographically) (functional method)
med and lat
left intersegmental fissure (LHV, LPV, Lig. teres)
caudate lobe (functional method) (where/receives blood)
post/sup in liver
receives blood from both right and left sides of liver
in the RIF is the RHV or RPV superior
RHV
medial lobe formerly known as the _____ in the traditional method
quadrate
what is the ant and post boundaries of the caudate lobe
ant: LPV and lig venosum
post: IVC
reidel’s lobe
normal variant where there is an inf extension of R lobe that can extend to iliac crests (seen lots in slim. females)
falciform ligament (attaches, where)
peritoneal fold connecting liver to diaphragm and ant abdominal wall
on ant surface
lig teres AKA
round lig
lig teres remnant of
left umbilical vein
lig teres connects to, extends, dividedes
connects to falciform lig on ant/inf surface
extends post on inf surface of liver to join lig venosum at LPV
divides L lobe to med/lat
lig venosum remnant of
ductus venosus
lig venosum divides _____ and caudate lobe
left lateral lobe
lig venosum runs ____ from lig teres at the level of _____ on the _____ surface
posteriorly
porta hepatis
visceral
what travels within fissures
vessels and ducts
right intersegmental fissure divides/contains
divides R lobe into ant/post
RHV courses more superiorly, RPV courses more inferiorly
main lobar fissure divides/contains
divides R/L lobes of liver
MHV courses sup
in sag, part of MLF can be seen as a hyperechoic line extending from the _____ to the ______
GB
RPV
left intersegmental fissure divides/contains
divides L lobe into med/lat
cranial: LHV
middle: ant portion of LPV
caudal: lig teres
