Explain the importance of the blood vessel taking blood out of the Bowman's capsule being narrower than the blood vessel taking blood into the Bowman's capsule.
As the blood vessel taking blood out of the Bowman's capsule is narrower, it has a smaller width. The smaller width creates more resistance, which increases blood pressure inside the Bowman's capsule. This helps ultrafiltration as it forces certain substances in the blood through the membrane/out of the blood, for example Urea.
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