SSC MTS EXAM

SSC

BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following are roles of the hepatic portal vein?I. carries nutrient-rich blood to the liver from the intestineII. prevents glucose from entering the general circulation immediatelyIII. supplies the liver with oxygenated blood for aerobic respiration
A
I and II only
B
I and III only
C
II and III only
D
I, II and III
Explanation: 

Detailed explanation-1: -It functions to supply the liver with metabolites and ensures that ingested substances are processed in the liver before reaching the systemic circulation, limiting the damage ingested toxins may cause.

Detailed explanation-2: -’Hepatic’ means of or relating to the liver, therefore the hepatic portal vein is a blood vessel that sends nutrient-rich blood from the gastrointestinal tract and spleen to the liver, but also delivers toxins to the liver that will be chemically modified in the proces of detoxication.

Detailed explanation-3: -The hepatic portal vein carries blood from the intestine to the liver before it is delivered to the systemic circulation. It carries the nutrient-rich blood to the liver which is further processed there and returned back to the heart via inferior vena cava.

There is 1 question to complete.