**Question:** All of the following arteries supply pancreas EXCEPT:

A. Aorta
B. Mesenteric artery
C. Splenic artery
D. Common hepatic artery

**Core Concept:** The pancreas receives its arterial supply from several branches of nearby vessels. The major arteries that supply the pancreas are the splenic artery, the dorsal pancreatic artery, the ventral pancreatic artery, and the common hepatic artery. However, not all of these arteries are involved in supplying the pancreas.

**Why the Correct Answer is Right:** The correct answer, **D. Common hepatic artery**, is not the main artery supplying the pancreas. Instead, it is responsible for supplying the liver, gallbladder, and common bile duct. The common hepatic artery is a branch of the abdominal aorta and does not directly contribute to the pancreas's arterial supply.

**Why Each Wrong Option is Incorrect:**

A. **Aorta (A)**: This is incorrect because the aorta is the main trunk artery that carries oxygenated blood to various organs, including the pancreas. However, the pancreas receives its arterial supply from the splenic artery and other branches, not the aorta itself.

B. **Mesenteric artery (B)**: Although the pancreas receives some collateral blood supply from the mesenteric artery, the primary arteries supplying the pancreas are the splenic artery and the dorsal pancreatic artery. The mesenteric artery supplies the intestines and parts of the small bowel and colon, not the pancreas.

C. **Splenic artery (C)**: The splenic artery is a primary artery that supplies the spleen, but it also plays a crucial role in supplying the pancreas. The pancreas is divided into the head, body, and tail, and each part receives its arterial supply from different branches of the splenic artery.

**Core Concept:** The pancreas is an important endocrine and exocrine gland located in the abdomen, responsible for producing enzymes and hormones that aid in digestion and blood glucose regulation. The pancreas is divided into three main parts: head, body, and tail.

**Why the Correct Answer is Right:** C. **Splenic artery (C)** is correct because it is responsible for supplying the splenic artery, which also provides blood to the pancreatic head, body, and tail. The other arteries mentioned - the common hepatic artery, celiac artery, and gastroduodenal artery - supply the liver, stomach, and duodenum, respectively, and do not directly supply the pancreas.

**Why Each Wrong Option is Incorrect:**

A. **Common hepatic artery (A)**: The common hepatic artery supplies the liver and gallbladder, not the pancreas.

B. **Celiac artery (B)**: The celiac artery supplies the stomach, duodenum, and first part of the duodenum, not the pancreas.

D. **Gastroduodenal artery (D)**: The gastroduodenal artery supplies the second part of the du