Liver Flashcards
Which two ligaments make up the lesser omentum?
hepatoduodenal & hepatgastric
Through which ligament does the MPV travel?
hepatoduodenal ligament
Which portion of the liver receives both right and left PV branches?
caudate lobe
What is the inferior boundary of the caudate lobe?
MPV
Coinaud’s liver segment 6
right posterior inferior
Which Coinaud’s segment of the liver is posterior and lateral to the right HV?
Segment 7
What is the functional unit of the liver?
lobule
What are the three vessels found in a portal triad?
portal vein, bile duct, hepatic artery
ALT, aka
SGPT
SGPT, aka
ALT
A patient presents to the department for a liver biopsy. While reviewing the chart, you note an INR of 1.3. What is your next step?
bring the lab results to the attention of the radiologist - too high for this procedure, but radiologist overseeing the procedure must make the call
What form of bilirubin is water soluble?
conjugated
What pigment is a byproduct of RBC breakdown
bilirubin
Is unconjugated bilirubin toxic or non-toxic?
toxic
List three functions of the liver
detoxifies blood, produces heat from chemical reactions, stores up to 400 mL of blood, produces 1/3-1/2 of the body’s lymph fluid
midclavicular liver measurement from diaphragm to inferior edge
< or = 15.5 cm
AP liver measurement midway through the organ
8.1 cm + or - 1.9 cm
caudate-Rt lobe ratio
< 0.65
Rt lobe-Lt lobe ratio
Rt lobe 2-3 times larger than Lt lobe
Reidel’s lobe
normal inferior extension of Rt lobe past the lower pole of the RK
What structure is the anatomical division of Rt & Lt lobes of the liver?
Falciform ligament
What structures border the quadrate lobe?
porta hepatis inferiorly, GB fossa & ligamentum teres laterally
What structures border the caudate lobe?
IVC posteriorly, ligamentum venosum anteriorly, main portal vein inferiorly
What structure is the functional division of Rt & Lt lobes of the liver?
main lobar fissure
Which structures course through the main lobar fissure?
MHV superiorly, imaginary line btwn GB fossa & IVC
What structure is the functional division of Rt anterior and posterior segments in the liver?
right intersegmental fissure
Which structures course through the right intersegmental fissure?
RHV superiorly, RPV inferiorly
Which vessel courses within the right posterior liver segment?
posterior branch of RPV
Which vessel courses within the right anterior liver segment?
anterior branch of RPV
What structure is the functional division of Lt lateral and medial segments in the liver?
left intersegmental fissure
Which structures course through the left intersegmental fissure?
LHV superiorly, ascending portion of the LPV mid-superiorly, ligamentum teres inferiorly
Which vessel courses within the left lateral liver segment?
lateral branch of LPV
Which vessel courses within the left medial liver segment?
medial branch of LPV
What three vessels course through the hepatoduodenal ligament?
MPV, HA, CBD
What is the posterior boundary of the caudate lobe?
IVC
What is the anterior boundary of the caudate lobe?
ligamentum venosum & teres
caudate process of caudate lobe
right oblique extension btwn IVC & MPV
papillary process of caudate lobe
inferior extension along ligamentum venosum, above porta hepatis
relationship of CBD & HA to MPV
anterior
Where is Glisson’s capsule thickest?
porta hepatis & IVC
What accompanies the portal triad for a short distance into the liver?
Glisson’s capsule
anterior boundary of the epiploic foramen
hepatoduodenal ligament
What fetal remnant courses through the falciform ligament?
umbilical vein
Where does the remnant of the umbilical vein course?
through the falciform ligament
path of falciform ligament
from umbilicus, along anterior aspect of the liver to the superior edge, attaching liver to diaphragm
round ligament, aka
ligamentum teres
ligamentum teres, aka
round ligament
What fetal remnant comprises the ligamentum teres?
umbilical vein
path of the ligamentum teres
along inferior aspect of left lobe of liver
What fetal remnant comprises the ligamentum venosum?
ductus venosum
path of the ligamentum venosum
anterior border of caudate
components of the coronary ligaments of the liver
right and left triangular ligaments
location of coronary ligaments
border the bare area
purpose of coronary ligaments
connect the posterosuperior surface of the liver to the diaphragm
relationship of the falciform ligament and the coronary ligments
continuous along superior aspect of the liver