BRYSON BIOMEDICAL ILLUSTRATIONS / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY BRYSON BIOMEDICAL ILLUSTRATIONS / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY
Urinary disorders. Artwork of a section through an enlarged (hyperplastic) prostate gland (bottom centre), which sits at the base of the bladder. The kidneys (top) are also seen. The prostate gland is only found in male mammals, it produces secretions that make up some of the fluid in semen. If the enlargement blocks the flow of urine out through the penis, back flow occurs (vesicoureteric reflux), which may cause kidney infections and the pelvis of the kidneys to become distended (hydronephrosis). If not treated the general functioning of the bladder may degenerate (atrophy) leading to renal insufficiency.
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