Gastric veins are blood vessels that drain deoxygenated blood from the stomach. They collect blood from the stomach's walls and transport it to the portal vein, which then carries it to the liver for processing. These veins play a crucial role in the body's circulation and nutrient absorption. The main gastric veins include the left gastric vein, right gastric vein, and short gastric veins. Each of these veins corresponds to specific areas of the stomach, ensuring efficient blood flow. Proper functioning of gastric veins is essential for maintaining overall digestive health and nutrient delivery.