Question

Hepatic portal system starts from
a. Digestive system to liver
b. Kidney to liver
c. Liver to heart
d. Liver to kidney

Answer 1

Hint: The system which consists of complex hepatic portal veins and capillaries is called the hepatic portal system. It is a very important part of the circulatory system. The largest vein in the cavity of the abdomen is the hepatic portal vein. The main function of the hepatic portal system is to provide de-oxygenated blood.

Complete answer:
The hepatic portal system starts from the digestive system or gastrointestinal tract and ends in the liver. The parts from where it collects venous blood are the lower esophagus, stomach, duodenum, jejunum, ileum, colon, and spleen. After collecting venous blood from all the parts it will drain it into the liver through the portal vein. The blood that is collected from these parts contains all the absorbed substances of the digestive tract.

The body organ which is mainly responsible for disposing of the waste products from our body in the way of urine is called Kidney. The organ which is responsible for food digestion, storage of energy, and removing poisons from the body is the Liver. There is no connection between substance transport from the kidney to the liver or vice-versa.

The hepatic artery is the way through which blood comes into the liver. This will supply further highly oxygenated blood from the lungs. The central hepatic vena of the liver carries deoxygenated blood which will further leave the liver and starts to travel to the heart.

The organ of the human body that produces waste products like urea is the liver. The formation of urea occurs when amino acids which are present in excess amount will break down in the liver. The high level of urea content is toxic for the body so that will be transported from the liver to the kidneys through the circulatory system.

Hence, the correct answer is option (A).

Note: Veins and arteries are made for taking in and out of the blood from the body. The blood should be reached to every part of the body as it is the main life fluid. The liver, lungs, and heart are connected to each other in the process of transporting blood from or to the body and pumping of the heart as well. The hepatic portal system is a specialized system that carries deoxygenated blood from the digestive system.