How the Kidneys Remove Urea

The video explains how kidneys filter blood, focusing on the removal of urea, a toxic waste product. It describes the structure of the kidney, including nephrons and glomeruli, and the process of ultrafiltration. The video also covers selective reabsorption, where necessary substances are reabsorbed into the blood, while waste continues through the nephron to be excreted. Finally, it prompts viewers to calculate the amount of blood filtered during the video.

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