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97 posts

April 7, 2009

The urinary bladder is a hollow organ made up of muscle fibres and lined with mucous membrane. Ordinarily, the bladder has the capacity to hold about 750 ml (almost a quart) of fluid. Since the fibre cells are elastic, like rubber, the bladder is able to expand greatly without suffering any damage. According to the amount of fluid collected, pressure is exerted on the walls of the bladder and, as it mounts, this triggers the feeling of needing to pass water. However, the amount of fluid present in the bladder is not the only force causing the urge for elimination. External influences such as exposure to cold produce it too. Having cold feet or stepping barefoot onto cold tiles or a cement floor cause a contraction of the bladder wall and a strong need to pass water, even if the bladder is only partially filled. A bladder infection creates the same urge, but often the patient is able to produce only a few drops of water while suffering pain and discomfort. The bladder is one of the body’s most sensitive organs, and one that reacts to physical as well as emotional stimuli in an unusually strong way.

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