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Abdomen Binder ARDMS Abdomen Board Information Exam Questions and Complete Solutions Graded A+
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Abdomen Binder ARDMS Abdomen Board Information Exam Questions and Complete Solutions Graded A+
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Abdomen Binder ARDMSAbdomen Board
Information Exam
Questions and Complete
Solutions Graded A+
Denning [Date] [Course title]
,What does each segment of the liver have - Answer: Its own
- portal vein
- hepatic artery
- bile duct
What are the three lobes of the liver - Answer: Right
Left
Caudate
How is the right lobe of the liver divided - Answer: Anterior and posterior segments
How is the left lobe of the liver divided - Answer: Medial and lateral
The medial segment used to be called the quadrate lobe
Caudate lobe - Answer: - lies on posterior superior surface of the liver between the IVC and the medial
left lobe
- supplied blood from branches of left and right portal venous and hepatic arterial systems
- drained by small emissary veins which enter directly into the IVC
What is the segmental anatomy based on - Answer: Distribution of the portal veins
How do the hepatic veins divide the liver - Answer: Longitudinally into 4 sections. Each section is then
divided transversely by an imaginary plan through the right and left portal veins
- segment 1: caudate lobe
- segment 2: left lateral superior
- segment 3: left lateral inferior
- segment 4a: left medial superior
- segment 4b: left medial inferior
,- segment 5: right anterior inferior
- segment 6: right posterior inferior
- segment 7: right posterior superior
- segment 8: right anterior superior
Blood supply to right lobe of liver - Answer: Right portal vein
Blood supply to the left lobe of the liver - Answer: Left portal vein
Blood supply to the caudate lobe of the liver - Answer: Right and left portal veins
Intersegmental / hepatic veins - Answer: - hepatic veins course between the lobes and segments,
interlobar and intersegmental
- the hepatic veins have NON echogenic walls
Intrasegmental / portal triad - Answer: - the vessels of the portal triad course to the center of each
segment (intrasegmental)
- the portal triad is encased by a fibrofatty sheath /Glisson's capsule giving it hyperechoic walls
Vessels in the portal triad - Answer: - main portal vein
- prior hepatic artery
- common hepatic duct
Main lobar fissure - Answer: - divides right and left hepatic lobes by an oblique plane between the
inferior vena cava and the gallbladder fossa
- landmarks: gallbladder, inferior vena cava, middle hepatic vein
- the fissure May be identified between the gallbladder neck and the junction of the right and left portal
veins
- it is also correct to say that the main lobar fissure divides the anterior segment of the right lobe from
the medial segment of the left lobe
, Right intersegmental fissure - Answer: Divides right lobe into anterior and posterior segments
- landmarks: right hepatic vein
Left intersegmental fissure - Answer: Divides the left lobe into medial and lateral segments
- landmarks: left hepatic vein, ascending left portal vein, falciform ligament, ligamentum teres
Ligamentum venosum - Answer: Remnants of the ductus venosus
- separates the left lobe from the caudate lobe
Fetal circulation - Answer: - ligamentum teres is a remnant of the umbilical vein which runs from the
umbilicus to the left portal vein
- shortly after birth, the umbilical vein contracts down forming the ligamentum teres
- with portal hypertension, the ligamentum teres recanalizes to form a portosystemic venous collateral
- ligamentum venosum is a remnant of the ductus venosus
- ligamentum venosum runs from the left portal vein to the inferior vena cava separating the left lobe
from the caudate lobe of the liver
Portal vein hepatopedal flow - Answer: Flow toward the liver, above baseline
Portal vein hepatofugal flow - Answer: Flow away from the Liver, below baseline
Portal vein - Answer: - hepatopedal flow: flow toward liver
- hepatofugal flow: flow away from liver
- low velocity continuous flow toward the liver with mild undulations. Flow velocity can increase after
eating
- the main portal vein is a vessel of the portal triad along with the common hepatic ducts and the
hepatic artery proper
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