Multiple Choice
Which class of drugs increases urinary output and lowers blood pressure?
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25. The Urinary System
Introduction to the Urinary System
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Which of the following is not a component of the filtration membrane in the kidney?
A
Fenestrated endothelium
B
Basement membrane
C
Podocytes
D
Macula densa
Verified step by step guidance1
Understand the structure of the filtration membrane in the kidney, which is crucial for the process of filtering blood to form urine.
Identify the components of the filtration membrane: the fenestrated endothelium, the basement membrane, and the podocytes. These structures work together to filter blood while retaining cells and large proteins.
Recognize that the fenestrated endothelium is a layer of endothelial cells with pores that allow the passage of water and small solutes.
Understand that the basement membrane is a dense layer of extracellular matrix that acts as a barrier to large molecules and cells.
Learn that podocytes are specialized cells with foot-like extensions that wrap around the capillaries of the glomerulus, providing structural support and further filtration. The macula densa, however, is part of the juxtaglomerular apparatus and not a component of the filtration membrane.
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