Some basic knowledge about the pancreas (1) The location of the pancreas. The pancreas is the second largest digestive gland in the human body. It is located behind the stomach and is horizontally attached to the posterior abdominal wall at the height of the 1st and 2nd lumbar vertebrae. The location is deep. (2) Morphological structure of pancreas 1. The pancreas has an elongated shape and can be divided into three parts: the pancreatic head, pancreatic body, and pancreatic tail. 2. The head of the pancreas is wide and surrounded by the duodenum. The body of the pancreas is the middle portion of the pancreas, spanning the inferior vena cava and in front of the aorta. The tail of the pancreas is thin and extends to the upper left side to the back and lower side of the splenic hilum. 3． The pancreatic duct is located within the pancreas parallel to the long axis of the pancreas. It originates from the tail of the pancreas and collects the ducts of the pancreatic lobules as it travels to the right. Finally, the pancreatic duct leaves the head of the pancreas and merges with the common bile duct, finally opening into the great papilla of the duodenum. (3) The functions of the pancreas include exocrine and endocrine functions. Exocrine function: The pancreatic tissue can produce pancreatic juice as an exocrine function; pancreatic juice is the most important digestive juice in the human body. Under normal circumstances, pancreatic juice contains inactive or inactive pancreatic zymogen in its glandular tissue. Pancreatic juice continuously flows into the duodenum through the common bile duct and Oddi's sphincter along the pancreatic duct. Due to the presence of bile in the duodenum and the secretion of enterokinase by the duodenal wall mucosa, under the action of the two, Trypsinogen begins to convert into highly active digestive enzymes. Endocrine function: The islet cells in the pancreas can produce insulin, glucagon and other substances, which are endocrine functions. Regulate blood sugar changes in the human body.