Liver Anatomy: Lobules and Portal Triad

Liver Anatomy: Lobules and Portal Triad

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Questions and Answers

What is the shape of each anatomical lobule in the liver?

Hexagonal

What is the function of the bile duct in the portal triad?

To drain bile from the liver

Which ducts combine to form the common hepatic duct?

Left and right hepatic ducts

Where does the common bile duct empty into?

<p>Duodenum</p> Signup and view all the answers

What is the purpose of the gallbladder in the biliary tree?

<p>To store and release bile</p> Signup and view all the answers

What is the name of the structure formed by the union of the common bile duct and the main pancreatic duct?

<p>Hepatopancreatic ampulla</p> Signup and view all the answers

What is the level at which the median sacral artery arises?

<p>L4</p> Signup and view all the answers

What is the most common site for aneurysmal changes?

<p>Abdominal aorta</p> Signup and view all the answers

What symptom may a patient with an aortic arch aneurysm experience?

<p>Hoarse voice</p> Signup and view all the answers

What is the name of the major vessel in the systemic venous system?

<p>Inferior vena cava</p> Signup and view all the answers

What is the common convergence of venous drainage from all structures below the diaphragm?

<p>Inferior vena cava</p> Signup and view all the answers

What is the consequence of leaving a large aneurysm untreated?

<p>It may rupture</p> Signup and view all the answers

What regulates the papilla?

<p>Sphincter of Oddi</p> Signup and view all the answers

Which artery supplies blood to the gallbladder?

<p>Cystic artery</p> Signup and view all the answers

Where does the venous drainage of the neck of the gallbladder flow into?

<p>Cystic veins</p> Signup and view all the answers

What is the function of the portal system?

<p>To carry venous blood to the liver</p> Signup and view all the answers

What is the point of convergence for the venous drainage of several organs?

<p>Portal vein</p> Signup and view all the answers

How does the portal vein divide before entering the liver?

<p>Into two branches</p> Signup and view all the answers

What forms as an accompanying vein for each branch of the superior mesenteric artery?

<p>Tributaries of the portal venous system</p> Signup and view all the answers

What is a connection between the veins of the portal venous system and the veins of the systemic venous system?

<p>Porto-systemic anastomosis</p> Signup and view all the answers

What is the major site of anastomosis between the oesophageal branch of the left gastric vein and the oesophageal tributaries to the azygous system?

<p>Oesophageal</p> Signup and view all the answers

What is the definition of portal hypertension?

<p>A portal venous pressure of more than 20mmHg</p> Signup and view all the answers

What is the result of rupture of oesophageal or rectal varices?

<p>Fatal blood loss</p> Signup and view all the answers

What is the cause of redirection of blood through porto-systemic anastomoses in portal hypertension?

<p>Obstruction of blood flow through the portal system</p> Signup and view all the answers

What is the term for the peak of a renal pyramid?

<p>Renal papilla</p> Signup and view all the answers

What is the structure that urine passes through before entering the ureter?

<p>Renal pelvis</p> Signup and view all the answers

Where do the renal arteries originate from?

<p>Abdominal aorta</p> Signup and view all the answers

What is the percentage of blood supply carried by the posterior division of the renal artery?

<p>25%</p> Signup and view all the answers

How many segmental arteries originate from the divisions of the renal artery?

<p>5</p> Signup and view all the answers

What is the name of the deep fissure on the medial margin of each kidney?

<p>Renal hilum</p> Signup and view all the answers

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