Digestion and Absorption Question 85
85. Nutrients absorbed by the blood capillaries of intestinal villi first go into
(a) liver through hepatic portal vein
(b) hepatic artery
(c) aorta
(d) posterior vena cava
Show Answer
Answer : a
Hints & Solution
(a) Hepatic portal system brings venous blood directly from digestive tract, spleen, pancreas and gall bladder to liver for extraction of nutrients and other metabolites by the hepatic portal vein. Aorta arises from the left ventricle and carries oxygenated blood to all parts of the body. Posterior vena cava opens into the right atrium bringing deoxygenated blood from the lower half of the body.
