Which renal structure is primarily involved in filtration of blood?

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Multiple Choice

Which renal structure is primarily involved in filtration of blood?

Filtration of blood occurs at the glomerulus. This capillary tuft, enclosed by Bowman's capsule, uses pressure to push water and small solutes from blood into Bowman's space, forming filtrate that will flow through the nephron’s tubules for processing. Large proteins and blood cells stay in the bloodstream because the filtration barrier restricts them. The other structures play different roles: the collecting duct handles final urine concentration and transport, and the renal pelvis collects urine before it leaves the kidney. So the glomerulus is the site where filtration begins.

Filtration of blood occurs at the glomerulus. This capillary tuft, enclosed by Bowman's capsule, uses pressure to push water and small solutes from blood into Bowman's space, forming filtrate that will flow through the nephron’s tubules for processing. Large proteins and blood cells stay in the bloodstream because the filtration barrier restricts them. The other structures play different roles: the collecting duct handles final urine concentration and transport, and the renal pelvis collects urine before it leaves the kidney. So the glomerulus is the site where filtration begins.

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