File:Gray1096.jpg

From Embryology

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Gall Bladder

Transverse section of gallbladder.

The internal or mucous coat (tunica mucosa vesicæ felleæ) is loosely connected with the fibrous layer. It is generally of a yellowish-brown color, and is elevated into minute rugæ. Opposite the neck of the gall-bladder the mucous membrane projects inward in the form of oblique ridges or folds, forming a sort of spiral valve.

The mucous membrane is continuous through the hepatic duct with the mucous membrane lining the ducts of the liver, and through the common bile duct with the mucous membrane of the duodenum. It is covered with columnar epithelium, and secretes mucin; in some animals it secretes a nucleoprotein instead of mucin.

(Gray's 1918 Anatomy text)

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current02:11, 8 July 2011Thumbnail for version as of 02:11, 8 July 2011600 × 380 (63 KB)S8600021 (talk | contribs)==Gall Bladder== The internal or mucous coat (tunica mucosa vesicæ felleæ) is loosely connected with the fibrous layer. It is generally of a yellowish-brown color, and is elevated into minute rugæ. Opposite the neck of the gall-bladder the mucous memb