False about poal vein
The hepatic poal vein is a vessel that moves blood from the spleen and gastrointestinal tract to the liver. It is approximately three to four inches in length and is usually formed by the merging of the superior mesenteric and splenic veins behind the upper edge of the head of the pancreas. ref - BDC 6e vol2 pg282-3
First 5 cm doesn't give any branches
It arises behind pancreatic head
It has constant length
It is a pa of the hepatic poal system
Abdomen and pelvis