Portal System

Question 1

Name the 2 venous systems

Answer 1

Systemic system

Portal System

Question 2

Drains into the IVC and back to the heart

Answer 2

Systemic system

Question 3

Drains venous blood from the gastrointestinal tract, liver, gallbladder, spleen and pancreas to the liver

Answer 3

Portal System

Question 4

Detoxifies partially deoxygenate, nutrient-rich blood from the abdominal viscera

Answer 4

Liver

Question 5

At which vertebral level is the hepatic portal vein?

Answer 5

L2

Question 6

What 2 veins does the hepatic portal vein split into?

Answer 6

Left and right hepatic portal veins

Question 7

Name the 3 tributaries of hepatic portal vein`

Answer 7

1. Right and left gastric vein
2. Cystic vein
3. Para-umbilical vein

Question 8

Name the 4 tributaries of the splenic vein

Answer 8

1. Short gastric vein
2. Left gastro-omental vein
3. Pancreatic vein
4. Inferior mesenteric vein

Question 9

Where does the inferior mesenteric vein drain into?

Answer 9

Splenic vein

Question 10

What 4 structures does the inferior mesenteric vein drain?

Answer 10

Drains the hindgut

1. Splenic flexure
2. Descending colon
3. Sigmoid colon
4. Rectum

Question 11

Where does the inferior mesenteric vein begin and end?

Answer 11

Begins- Superior rectal vein

Ends- draining into splenic vein

Question 12

What 4 structures does the superior mesenteric vein drain?

Answer 12

1. Small intestine
2. Caecum
3. Ascending colon
4. Transverse colon

Question 13

What are the 7 tributaries of the superior mesenteric vein?

Answer 13

1. Right gastro-omental vein
2. Anterior/posterior inferior pancreaticoduodenal vein
3. Jejunal vein
4. Ileal vein
5. Ileocolic vein
6. Right colic vein
7. Middle colic vein

Question 14

Anastomosis between the hepatic portal and systemic venous circulations

Answer 14

Portocaval anastomoses

Question 15

What causes the anastomoses to become dilated and engorged (varices)

Answer 15

Portal hypertension

Question 16

Consequences of varices

Answer 16

Can burst and cause fatal haemorrhage

Question 17

Oseophageal anastomoses

Answer 17

1. Oseophgeal branches of left gastric vein (portal)

2. Oseophageal branches of azygous vein (systemic)

Question 18

Rectal anastomoses

Answer 18

1. Superior rectal vein (portal)

2. Middle and inferior rectal vein (systemic)

Question 19

Paraumbilical anastomoses

Answer 19

1. Paraumbilical vein (portal)

2. Superficial epigastric vein (systemic)

Question 20

Retroperitoneal

Answer 20

1. Mesenteric vein (portal)

2. Retroperitoneal vein (systemic)

Question 21

Formed by union of common hepatic duct and cystic duct

Answer 21

Common bile duct

Question 22

What 2 ducts unite to form the ampulla of vater?

Answer 22

Common hepatic duct

Cystic duct

Question 23

Where does the ampulla of vater drain?

Answer 23

Into descending duodenum via major duodenal papilla