PATHOLOGY

Detailed explanation-1: -The superior mesenteric artery travels behind the pancreas. It runs alongside the superior mesenteric vein, which takes blood away from the midgut. Veins carry blood from the body back to the heart and lungs.

Detailed explanation-2: -The superior mesenteric artery supplies the midgut from the ampullary region of the second part of the duodenum to the splenic flexure of the large intestine.

Detailed explanation-3: -The neck of the pancreas lies in front of the superior mesenteric vein, splenic vein and portal vein junction. The body and tail of the pancreas run obliquely upward to the left in front of the aorta and left kidney. The pancreatic neck is the arbitrary junction between the head and body of the pancreas.