What is pancreas

Last updated: April 1, 2026

Quick Answer: The pancreas is a glandular organ located behind the stomach that produces digestive enzymes and hormones, including insulin, which regulate blood sugar levels and aid digestion.

Key Facts

Overview

The pancreas is a vital glandular organ that plays a crucial role in both digestion and blood sugar regulation. Located deep within the abdomen behind the stomach, this organ is about the size of a hand and has dual functions as both an exocrine gland and an endocrine gland.

Anatomy and Location

The pancreas lies horizontally behind the stomach and is divided into three main parts: the head, body, and tail. The head connects to the small intestine via the pancreatic duct, allowing digestive juices to flow into the duodenum. Despite its importance, the pancreas is relatively small, measuring approximately 6 inches in length and weighing about 3 ounces in adults.

Exocrine Function

As an exocrine gland, the pancreas produces digestive enzymes that are released into the small intestine. These enzymes include:

These enzymes work alongside bile from the liver and gallbladder to complete the digestive process in the small intestine.

Endocrine Function

As an endocrine gland, the pancreas produces hormones through specialized cells called islets of Langerhans. The primary hormones are insulin and glucagon, which work together to maintain blood glucose levels. Insulin lowers blood sugar by allowing cells to absorb glucose, while glucagon raises blood sugar by triggering the liver to release stored glucose. This balance is essential for maintaining proper energy levels throughout the body.

Health and Disease

Several conditions can affect pancreatic function, including pancreatitis (inflammation of the pancreas), pancreatic cancer, and diabetes (when insulin production is insufficient). Regular medical checkups and a healthy lifestyle help maintain pancreatic health.

Related Questions

What does the pancreas produce?

The pancreas produces two main products: digestive enzymes like amylase, lipase, and protease that aid in breaking down food in the small intestine, and hormones including insulin and glucagon that regulate blood sugar levels and energy metabolism.

Where is the pancreas located?

The pancreas is located deep in the abdomen, positioned horizontally behind the stomach and near the left kidney. It connects to the small intestine via the pancreatic duct, allowing digestive secretions to enter the duodenum.

What happens if the pancreas stops working?

If the pancreas stops producing sufficient insulin, it leads to diabetes, requiring management through diet, medication, or insulin injections. Complete pancreatic failure can cause severe digestive problems and metabolic dysfunction, requiring medical treatment and lifestyle management.

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Sources

  1. Wikipedia - Pancreas CC-BY-SA-4.0
  2. Mayo Clinic - Pancreas Fair Use
  3. MedlinePlus - Pancreas Public Domain