Question: function of the jejunum in the digestive system

title: Jejunum
text: The lining of the jejunum is specialized for the absorption , by enterocytes , of small nutrient particles which have been previously digested by enzymes in the duodenum . Once absorbed , nutrients ( with the exception of fat , which goes to the lymph ) pass from the enterocytes into the enterohepatic circulation and enter the liver via the hepatic portal vein , where the blood is processed . The jejunum is involved in magnesium absorption . 

Answer: answer: The lining of the jejunum is specialized for the absorption, by enterocytes, of small nutrient particles which have been previously digested by enzymes in the duodenum.   The jejunum is involved in magnesium absorption.
answer: The lining of the jejunum is specialized for the absorption of small nutrient particles.
Once absorbed , nutrients pass from the enterocytes into the enterohepatic circulation and enter the liver via the hepatic portal vein , where the blood is processed . The jejunum is also involved in the magnesium absorption .