9
Portal vein
6.3
Left gastric vein
Oesophageal veins Right gastric vein
Para-umbilical veins Cystic vein
Splenic vein
Inferior mesenteric vein
Superior mesenteric vein
Porto-caval anastomoses
6.3 1 Anastomoses between the gastric and oesophageal veins 2 Anastomoses within the rectal area 3 Anastomoses between the para-umbilical veins and subcutaneous veins within the umbilical region 4 Anastomoses between the paraumbilical veins and venous plexus surrounding the urinary bladder 5 Anastomoses within the retroperitoneal space 6 Anastomoses between the hepatic and phrenic veins
Pericardiacophrenic veins and superior phrenic veins Azygos, hemiazygos vein
6
Axillary, subclavian, brachiocephalic vein
1
Inferior phrenic veins Oesophageal veins Thoraco-epigastric veins
Gastric veins
Inferior vena cava
Para-umbilical veins
3
Internal iliac veins Superficial epigastric veins
Burow’s veins along the median umbilical ligament
Vesical venous plexus
4
Middle and inferior rectal vein
Superior rectal vein
2
Retzius’s veins in the retroperitoneal space
5 313