Biology, asked by Pavankiran, 1 year ago

Why the diameter of efferent arteriole is less than of the afferent arteriole?

Answers

Answered by VISA006
122
The diameter of efferent arteriole is less than that of the afferent arteriole because pressure builds up in the arteriole and some of the fluid is forced to go through the gaps in cells of Bowman's capsule (podocytes). This filters the blood, and this process is called ultrafiltration.
Answered by Anonymous
55

The efferent arteriole carries blood away from the glomerulus. Because it has a smaller diameter than the afferent arteriole, it creates some resistance to blood flow, producing the back-up of blood in the glomerulus which creates higher pressure in the glomerular cavity.

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