The Gall blabber is a pear-shaped sac attached to the posterior surface of the liver by connective tissues. It has a fungus or expanded end, a body or main part and a neck which is continuous with the cystic duct, which unites with the hepatic duct from the liver to form the common bile duct.
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Write a Brief note on the main functions of Air Bladder in mammals
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The air bladders are more or less sac like structure lying between the alimentary canal and the kidneys and contain a mixture of carbon dioxide, oxygen and nitrogen. Generally, the gas bladder opens into oesophagus and it is present in all the osteichthyes, except a few.