Question

All of the following are true about how nutrients are absorbed from the small intestine EXCEPT which statement?

(A) All digested water-soluble nutrients enter the portal vein after absorption.
(B) Digested nutrients entering the lymphatic system go directly to the liver.
(C) After digested nutrients are processed in the liver, they enter the hepatic vein.
(D) Digested nutrients entering the portal vein go directly to the liver.
(E) All digested fat-soluble nutrients enter the lymphatic system after absorption.

Answer 1

Answer: (B) Digested nutrients entering the lymphatic system go directly to the liver.

Explanation:

The lining of the small intestine consists of villi, which are tiny finger like structures. These villi aid in increasing the surface area of the small intestine which results in aids in absorption of the fats and fat soluble vitamins. In the center of each villi there are tiny lymph vessels called as lymph capillaries helps in absorption of the nutrients. The lymphatic system get drained into the veins but not directly to the liver.