Digestive System Hormones

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Questions and Answers

What is the primary function of bile salts in the digestive process?

To transport enzymes from the liver

To emulsify fats for absorption (correct)

To store bile in the gallbladder

To provide color to the bile

Where does bile flow after it is produced in the liver?

Common hepatic duct (correct)

Common bile duct

Cystic duct

Main pancreatic duct

Which structure serves as the storage organ for bile?

Pancreas

Liver

Common bile duct

Gallbladder (correct)

What happens to bile salts after they emulsify fats?

They are absorbed in the ileum Signup and view all the answers

Which duct connects the liver to the gallbladder for bile storage?

Cystic duct Signup and view all the answers

What is the role of bile pigments in bile?

To provide color Signup and view all the answers

Which process is described as the organization of fat into micelles?

Emulsification Signup and view all the answers

What remains in the gallbladder until it is needed?

Bile Signup and view all the answers

What hormone triggers the release of bile from the gallbladder?

Cholecystokinin Signup and view all the answers

Which duct conducts bile from the gallbladder to the duodenum?

Common bile duct Signup and view all the answers

Where are bile salts absorbed after they have emulsified fats?

Ileum Signup and view all the answers

What is the function of bile in the gastrointestinal tract?

Emulsify fats Signup and view all the answers

After bile salts are absorbed in the ileum, where do they go next?

They circulate back to the liver Signup and view all the answers

What event signals the gallbladder to contract and release bile?

The secretion of cholecystokinin Signup and view all the answers

In which part of the gastrointestinal tract is bile finally secreted?

Duodenum Signup and view all the answers

What happens to bile after it leaves the gallbladder?

It travels through the cystic duct to the common bile duct Signup and view all the answers

What surgical procedure involves the removal of the gallbladder?

Cholecystectomy Signup and view all the answers

What does bile primarily aid in during digestion?

Emulsifying fats for better absorption Signup and view all the answers

Study Notes

Bile Production and Composition

Bile is synthesized in the liver and exits through the common hepatic duct.
Composed of bile pigments and bile salts; bile pigments are primarily for color, while bile salts are crucial for fat emulsification.
Bile salts emulsify fats, converting them into micelles for absorption in the ileum.

Biliary Tree and Storage

After production, bile travels through the common hepatic duct to the cystic duct.
The cystic duct leads to the gallbladder, which serves solely to store bile until it is needed.
The hormone cholecystokinin (CCK) triggers gallbladder contraction to release bile.

Bile Flow Pathway

Upon contraction, bile is expelled from the gallbladder through the cystic duct, moving into the common bile duct.
The common bile duct is the final segment of the biliary tree, directing bile into the duodenum, the first part of the small intestine.

Function in the Digestion Process

In the duodenum, bile emulsifies fats, enhancing their absorption.
While fat is emulsified in the duodenum, bile salts proceed to the ileum for absorption.
The ileum is responsible for the absorption of emulsified fats and bile salts.

Recycling of Bile Salts

After absorption in the ileum, bile salts return to the liver to be utilized again.
This cyclical process allows for efficient digestion and absorption of fats, maximizing the use of bile salts.

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Description

Explore the role of cholecystokinin (CCK) in the release of bile from the gallbladder. This quiz covers how CCK stimulates bile release and its importance in digestion. Perfect for understanding gastrointestinal physiology.