A ________ is the narrowing of a passageway in the urinary system.

A) stricture
B) catheter
C) nephrolith
D) calculus


A) stricture
A stricture is the narrowing of a passageway. A catheter is a flexible tube inserted
into the body. Nephrolith is a kidney stone. A calculus is a stone formed within an organ by an
accumulation of mineral salts.

Health & Biomechanics

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