Portal vein (dave's notes)

Question 1

What contributes to form the portal vein?

Answer 1

• upwards continuation of the SMV
• with splenic vein
• behind the neck of pancreas

Question 2

What significant anatomical routes deviate behind D1?

Answer 2

• The bile duct curves to the right behind the pancreas
• the hepatic artery curves to the left in front of the pancreas

Question 3

What is the course of the portal vein?

Answer 3

• originates posterior to the neck of pancreas
• from the union of SMV and splenic vein
• course right to the liver
• running along free edge of lesser omentum (hepatoduodenal lig) with other portal triad structure (common hepatic duct and common hepatic artery anteriorly)

seperated from IVC by epiploic foramen of Winslow

Question 4

What happens to the portal vein at the porta hepatis?

Answer 4

The portal vein divides in a T shape into right and left branches

Question 5

What are the seven tributaries of the portal vein?

Answer 5

SMV, splenic vein, R and L gastric veins, superior pancreaticoduodenal veins, cystic vein (to the right branch), perioumbilical veins (with ligamentum teres)

Question 6

There is no significant ………. in the human

Answer 6

???steaming WTF??

Question 7

List the five portal/systemic anastomoses

Answer 7

1. Lower oesophageal
2. Upper end of anal canal
3. Bare area of the liver
4. Periumbilical region
5. maybe there are only four

Question 8

Describe the development of the portal vein

Answer 8

The SMV and splenic veins unite ??? left vitelline (top part closes) xxx cros channel xxx right vitelline.