Surgery>>>>>Small Intestine
Question 5#

How much fluid normally enters the adult small intestine each day?

A. 2 L
B. 4 L
C. 6 L
D. 8 L

Correct Answer is D


Eight to nine liters of fluid enters the small intestine daily, of which over 80% is absorbed. This includes 2 L from oral intake, 1.5 L of saliva, 2.5 L of gastric juice, 1.5 L of biliopancreatic secretions, and 1 L of fluid secreted by the small intestine.