ANDREW BEZEAR, REED BUSINESS PUBLISHING, SCIENCE PHOTO LIBRARY ANDREW BEZEAR, REED BUSINESS PUBLISHING, SCIENCE PHOTO LIBRARY
Cystitis. Artwork of a section of the bladder (lower centre) affected by an inflammation known as cystitis. The bladder is a hollow muscular organ, situated in the lower abdomen, which acts as a reservoir for urine. The urine is expelled through the urethra visible here as a dark narrow canal at bottom centre. The inflammation involves the inner lining of the bladder and is usually of bacterial origin. The commonest infecting organism is the rod-like bacterium known as Escherechia coli (inset). Cystitis mostly affects women due to the short length of the female urethra which facilitates the infection.
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