The foregut is a crucial part of the digestive system, encompassing several key organs. According to the provided reference, the foregut anatomy includes the distal end of the esophagus, stomach, duodenum (first and second parts), pancreas, liver, and gallbladder. In addition to these organs, the foregut has a specific blood supply system.
Foregut Components
Here's a breakdown of the organs that comprise the foregut:
- Distal Esophagus: The lower portion of the tube connecting the mouth to the stomach.
- Stomach: A muscular organ that stores and begins the digestion of food.
- Duodenum (First and Second Parts): The initial segments of the small intestine where further digestion takes place.
- Pancreas: An organ that produces enzymes for digestion and hormones for blood sugar regulation.
- Liver: A large organ responsible for filtering blood, producing bile, and metabolizing nutrients.
- Gallbladder: A small sac that stores and concentrates bile produced by the liver.
Blood Supply
The foregut receives its blood supply from two primary sources:
- Celiac Trunk: The main artery that supplies oxygenated blood to the foregut organs.
- Portal Vein: Provides venous drainage, carrying blood from the foregut to the liver for processing.
Summary Table: Foregut Anatomy
| Organ | Function |
|---|---|
| Distal Esophagus | Transports food to the stomach |
| Stomach | Stores and digests food |
| Duodenum (Parts 1 & 2) | Continues digestion; receives bile and pancreatic enzymes |
| Pancreas | Produces digestive enzymes and hormones |
| Liver | Produces bile, filters blood, metabolizes nutrients |
| Gallbladder | Stores and concentrates bile |
| Celiac Trunk | Arterial supply of foregut organs |
| Portal Vein | Venous drainage of the foregut, transporting blood to the liver |
