Concept:The hepatic portal vein is a special blood vessel that carries absorbed nutrients from the digestive tract to the liver for processing and storage.
Explanation:Blood leaving the alimentary canal is rich in digested food substances absorbed from the intestines.
This blood is collected by veins from the stomach, intestines, spleen, and pancreas, which join to form the hepatic portal vein.
The hepatic portal vein then transports this nutrient-rich blood directly into the liver.
In the liver, nutrients are metabolised, toxins are removed, and the blood is later passed into the general circulation.
The hepatic artery brings oxygenated blood to the liver, while the hepatic vein takes blood away from the liver.
The mesenteric artery supplies oxygenated blood to the intestines, not the liver.
Thus, the vessel that carries blood from the alimentary canal to the liver is the hepatic portal vein.
Answer:C. Hepatic portal vein