- A The size of Bowman’s capsule is significantly large.
- B The afferent arteriole is narrow compared to the efferent.
- C Bowman’s capsule is cup-shaped.
- D The efferent arteriole is narrow compared to the afferent.
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Answer:
D
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The capillary hydrostatic pressure during filtration is built in the glomerulus due to the efferent arteriole being narrow compared to the afferent. This creates resistance to blood flow, increasing the blood pressure and hydrostatic pressure within the glomerular capillaries. As a result, blood is filtered through the glomerulus into the Bowman's capsule, forming the filtrate.
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