Coloured SEM of inner wall of gall bladder

Coloured SEM of inner wall of gall bladder

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Caption: Wall of gall bladder. Coloured Scanning Electron Micrograph (SEM) of the mucous membrane on the in- side wall of the gall bladder. The gall bladder's inside wall is folded when empty (as here) and flat when the organ is full of bile. The folds are covered with tinier folds in the mucous membrane, giving a honeycombed appearance. These help to reabsorb water from bile, making it more concen- trated. The human gall bladder is 8-10cm long and 3cm wide, and is located in the liver. It acts as a storage sac for bile, a waste product excreted by the liver into the small intestine, which also helps to break down fats in the gut. This sample is from a guinea pig. Magnification unknown.

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Keywords: anatomy, animal body, gall bladder, mucosa, mucous membrane, wall mucosa

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