Gallbladder Totally Explained

Everything about Gallbladder totally explained

The fundus of the gallbladder is the part farthest from the duct, located by the lower border of the liver . It is at the same level as the transpyloric plane.

Microscopic anatomy

The different layers of the gallbladder are as follows:

The gallbladder has a simple columnar epithelial lining characterized by recesses called Aschoff's recesses, which are pouches inside the lining.

Under the epithelium there's a layer of connective tissue (lamina propria).

Beneath the connective tissue is a wall of smooth muscle (muscularis externa) that contracts in response to cholecystokinin, a peptide hormone secreted by the duodenum.

There is essentially no submucosa separating the connective tissue from serosa and adventitia. Section References

Function

The gallbladder stores about 50 ml (1.7 US fluid ounces / 1.8 Imperial fluid ounces) of bile, which is released when food containing fat enters the digestive tract, stimulating the secretion of cholecystokinin (CCK). The bile, produced in the liver, emulsifies fats and neutralizes acids in partly digested food.
After being stored in the gallbladder the bile becomes more concentrated than when it left the liver, increasing its potency and intensifying its effect on fats. Most digestion occurs in the duodenum.

Diseases and disorders

Cholecystitis

Gallbladder cancer

Strawberry gallbladder

GallstoneFurther Information

Get more info on 'Gallbladder'.

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