A narrow segment of the efferent arteriole controls efferent resistance in the hydronephrotic rat kidney.

Abstract

We microscopically examined the narrow segment of the efferent arteriole (NSEA) in the hydronephrotic kidney of rats in vivo. This segment is routinely found at the proximal efferent arteriole adjacent to the glomerulus and is characterized by a narrowing due to a cellular structure which bulges into the lumen. The existence of NSEA has been described in a… (More)

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