The liver is a large digestive gland. Most fish have two-, three—lobed, carp - seven-lobed. It produces bile, which accumulates in the gallbladder, and then enters the intestine through the bile duct. Bile neutralizes the acidic reaction of the stomach environment, emulsifies fats and activates lipase, an enzyme of the pancreas. In the liver, the disinfection of foreign proteins and poisons that came with the blood from the digestive organs takes place, glycogen is deposited, and in sharks and cod — fat and vitamins.