Liver Flashcards
What is hemopoiesis?
In early embryonic life the liver is responsible for the formation and development of blood cells
What is the name of the thin layer that covers the liver?
Glisson Capsule
Although the liver is considered an intraperitoneal organ, what 5 areas are left uncovered?
- Bare area
- Galbladder area
- Falciform ligament
- Porta hepatis
- Area adjacent to the IVC
What are the 3 main lobes of the liver?
- Right lobe
- Left lobe
- Caudate lobe
What is a portal triad composed of?
- Portal vein
- hepatic artery
- Bile duct
What is the name of the system used to separate the liver into eight surgical segments?
Couinaud system
What ligament separates the liver into the left medial lobe and the right lateral lobe?
Falciform ligament
also know as Umbilical fissure
Where is the quadrate lobe located?
Between the gallbladder fossa and the round ligament
What divides the right lobe of the liver into anterior and posterior segments?
Right hepatic vein
What separates the right lobe from the left lobe?
Middle hepatic vein and also by the gallbladder fossa
What separates the left lobe into medial and lateral parts?
Left hepatic vein
The main portal vein is created by the union of the ____________ and ____________.
- SMV- superior mesenteric vein
2. Splenic vein
What does the image illustrate?
The Portal Confluence
- SMV
- IMV
- Splenic vein
Enlargement of the portal vein is called what? and what is the measurement?
Portal hypertension
More than 13mm abnormal
Do portal veins increase or decrease as they approach the diaphragm?
Decrease
What should normal flow be within the portal veins?(hepatopetal/fugal & monophasic/triphasic)
Monophasic and hepatopetal
How many hepatic veins do we have and what do they drain into?
3 (right,middle, left) and they drain into the IVC
Hepatic veins(increase/decrease?) as they approach the diaphragm? and what blood flow pattern do they have?
Increase
Triphasic—>because of their association with the right atrium and atrial contraction
what is Budd-Chiari syndrome?
The occlusion of the hepatic veins with possible coexisting occlusion of the inferior vena cava
What are the three structures located within the porta hepatis?
Main portal vein
Common bile duct
Hepatic artery–>carries oxygenated blood to the liver from aorta
Are hepatic arteries low or high resistance??
Low resistance flow pattern
In early embryonic life the umbilical vein bifurcates into what?
Left and right branch
What is the right branch referred as? and what does it turn into?
The right branch is referred as the DUCTUS VENOSUS and after it collpases becomes the ligamentum venosum
What does the left umbilical vein turn into?
It is referred to as the LIGAMENTUM TERES/ROUND LIGAMENT