Clinical Antomy of Jaundice (Part 1) Flashcards
What is bilirubin?
Normal by-product of the break down of red blood cells
Where does breakdown of red blood cells mainly occur?
In the spleen
What is bilirubin used to form?
Bile - which is formed in the liver
Where does bile travel through?
The biliary tree - A set of tubes connecting the liver to the 2nd part of the duodenum
What does the gallbladder do in terms of bile?
It stores and concentrates bile
What does bile aid in the small intestine?
The normal absorption of fats
What does the pancreas do?
Excretes digestive enzymes into the 2nd part of the duodenum
Describe the surface anatomy of the liver?
Located mainline the RUQ
Protected by ribs 7-11
What are some of the functions of the liver?
Glycogen storage
Bile secretion
Other metabolic functions
Where is the gall bladder in relation to the liver?
Posterior and inferior
What are the 4 lobes of the liver?
Right and Left
Caudate lobe - superior
Quadrate lobe - lower
What is the round ligament of the liver?
The remnant of the umbilical vein
What is the ligament that ‘runs between’ the left and right lobe?
Falciform ligament
What is the ports hepatis?
Site of entrance for portal triad structures
Describe the functional segments of the liver?
There are 8 different segments - allowing for segmentectomy
What does each segment of the liver have?
Branch of a hepatic artery
Branch of a hepatic portal vein
Bile drainage (to bile duct)
Venous drainage (to IVC)
What does the IVC and hepatic veins lack?
They lack valves - so if they have a high amount of pressure it will be directed back and cause an enlarged liver, leading to ascites - CHECK
What happens if there is an increase in central venous pressure? (CHECK WORDING)
It is directed to the liver
What do the hepatic veins do before entering the IVC?
The hepatic veins directing deoxygenated blood from the liver come together as 3 veins before entering IVC
What is the portal triad?
Hepatic portal vein
Hepatic artery proper
Bile duct
What does the portal triad run with?
The hepatoduodenal ligament - free edge of the lesser omentum
What is the coeliac trunk?
It is the first of the 3 main midline branches of the aorta which supplies the foregut
IT is retroperitoneal