Question

Which of the following juice passes through the ampulla of water?
A. Succus entericus
B. Pancreatic juice
C. Bile
D. Secretion of Brunner's gland

i. B and C
ii. A, B and C
iii. B,C and D
iv. A,B,C and D

Answer 1

Hint: Ampulla of water is formed by the union of the pancreatic duct and the common bile duct. It acts as a passage for enzymes and juices that is released from bile duct and pancreatic duct. These enzymes and juices are helpful in the digestion of complex molecules like carbohydrates, proteins and fats into its simple forms.

Complete Answer:
Ampulla of water is formed by the union of the pancreatic duct and the common bile duct. This is specifically located at the major duodenal papilla. It is responsible for the flow of enzymes and juices that are produced in the common bile duct and the pancreatic duct. Therefore, it is also known as the hepatopancreatic ampulla or the hepatopancreatic duct.

Ampulla of water is guarded by the sphincters that regulate the flow of bile and pancreas pancreatic juice. These sphincters are:
- The sphincter of the pancreatic duct
- The sphincter of the bile duct
- The sphincter of oddi

The correct answer is option (i) i.e. B and C.

Additional information: Pancreatic juice consists of alkaline fluid(chiefly bicarbonates) and enzymes like trypsin, lipase and anglaise that are responsible for the breakdown of proteins, fats and carbohydrates respectively in its simplest form.
Bile is the green to yellowish green fluid produced in liver and helps in the digestion of lipids in small intestine. Bile is produced in the liver while stored and concentrated in gallbladder.

Note: The sphincter of oddi is responsible for controlling the flow of bile and pancreatic secretions into the duodenum( part of small intestine) and also preventing the backflow of duodenal contents into the Ampulla.