Blood that flows from stomach to intestine will not go directly to heart but flow explain this
Answers
Answer:
The veins starting from the stomach and intestine do not directly convey the blood to the posterior vena cava. Instead, they first enter the liver as a combined hepatic portal vein. The liver acts as a storehouse to regulate the number of nutrients flowing into the general blood circulation. The liver performs many functions some of which are gluconeogenesis, glycogenolysis and detoxification. Gluconeogenesis is the conversion of excess sugar (that are absorbed from the intestinal wall) into glycogen with the help of insulin hormone. Glycogenolysis is the conversion of glycogen into glucose. The liver cells detoxify any toxic molecules that are absorbed into the body through food.
Answer:
The statement above talks about the hepatic portal system.
A Portal system can be described as when a vein of an organ goes into another organ and then to heart.
The vein from intestine contains high amounts glucose absorbed by intestines , although it is deoxygenated blood , it can't go directly to heart, so in order to deposit that high amount of glucose , the vein goes to liver , where this glucose is converted into glycogen and stored.
From liver the vein goes to heart and is oxygenated.
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