Q: The bile duct system does NOT involve which of the following organs?
| A | liver | |
| B | stomach | |
| C | gallbladder | |
| D | duodenum |
The correct answer is B. Bile is secreted by the liver and aids in digestion. It is stored in the gallbladder and eventually excreted into the duodenum, which is the first part of the small intestine. The important thing to remember for this question is that the bile system enters the gastrointestinal system in the duodenum, not the stomach.