5.6. Overview of the Gallbladder

Question 1

What is the Gallbladder?

Answer 1

A Sac-like structure on the Inferior Surface of the Liver

Question 2

What are the 3 Histological Layers of the Gallbladder?

Answer 2

1. Mucosa
2. Muscularis Externa
3. Serosa

Question 3

What is contained within the Mucosa of the Gallbladder?

Answer 3

Rugae

Question 4

What other Alimentary Organ contains Rugae?

Answer 4

The Stomach

Question 5

What is the function of Rugae?

Answer 5

To allow for expansion under increasing Volume - this keeps the pressure on the contents the same

Question 6

Is Bile produced by the Liver constantly?

Answer 6

Yes

Question 7

What happens to the Bile when the Major Duodenal Papilla (Sphincter of Oddi) is closed?

Answer 7

It backs up throughout the Biliary Tree and fills up the Gallbladder

Question 8

What is the function of the Gallbladder?

Answer 8

To store and concentrate Bile

Question 9

How is the Bile concentrated by the Mucosal Layer of the Gallbladder?

Answer 9

The Mucosa of the Gallbladder constantly absorb Sodium Ions and Water

Question 10

Between what strengths can bile then be concentrated?

Answer 10

Between 5 and 20 times

Question 11

What causes the relaxation of the Major Duodenal Papilla?

Answer 11

Cholecystokinin - due to this controling the secretion of Pancreatic Enzymes