https://www.khanacademy.org/science/health-and-medicine/human-anatomy-and-physiology/introduction-to-the-kidneys/v/meet-the-kidneys 2023-08-17T23:33:36.770424498Z Meet the kidneys! The kidneys play a vital role in filtering blood and producing urine. Understand how these fist-sized organs receive oxygenated blood, hold onto essential nutrients, and expel waste products. Discover the unique dual capillary system, the vasa recta and peritubular capillaries, that make this process possible. Raja Narayan video https://cdn.kastatic.org/googleusercontent/5k1OWSEHDL2rqpTqZ_0YQRFJjyey3GqT_ZZE8E-3uKOxOVbn8faldAVTLUKAWWYg-Ow-hkUCHzBhMc2GcP8jYZQ4 Meet the kidneys! The kidneys play a vital role in filtering blood and producing urine. Understand how these fist-sized organs receive oxygenated blood, hold onto essential nutrients, and expel waste products. Discover the unique dual capillary system, the vasa recta and peritubular capillaries, that make this process possible. https://cdn.kastatic.org/ka-youtube-converted/mcQQGGShmLs.mp4/mcQQGGShmLs.mp4 384 The human renal system https://www.khanacademy.org/science/health-and-medicine/human-anatomy-and-physiology/introduction-to-the-kidneys/v/how-do-our-kidneys-work 2023-04-19T21:14:29.759927248Z Kidney function and anatomy Kidneys are important organs that filter our blood and produce urine to maintain balance (homeostasis) in our body. Blood enters the kidneys through renal arteries and exits through renal veins. The nephron, the smallest functional unit of the kidney, handles filtration and collection. This process helps regulate pH, blood pressure, and waste removal. Raja Narayan video https://cdn.kastatic.org/googleusercontent/0FPGWziOxoyH20df0kHMKk9uFDhZWY_e5jSvsBB72SSb3YLd12Bg34X5HYa0EaTbSv15YZun38k0h0jnyZGKpQj6 Kidney function and anatomy Kidneys are important organs that filter our blood and produce urine to maintain balance (homeostasis) in our body. Blood enters the kidneys through renal arteries and exits through renal veins. The nephron, the smallest functional unit of the kidney, handles filtration and collection. This process helps regulate pH, blood pressure, and waste removal. https://cdn.kastatic.org/ka-youtube-converted/ctGkLYuUCvU.mp4/ctGkLYuUCvU.mp4 478 The human renal system https://www.khanacademy.org/science/hs-bio/x230b3ff252126bb6:from-cells-to-organisms/x230b3ff252126bb6:human-body-systems/a/hs-the-digestive-and-excretory-systems-review 2026-02-11T15:02:15.352609876Z The digestive and excretory systems review Learn about the organs and functions of the digestive and excretory systems. article https://www.khanacademy.org/science/bridge-course-class-10th-science/x37589313f9a4c197:untitled-78/x37589313f9a4c197:excretion/e/excretion-in-humans 2026-04-07T22:59:30.107127435Z Excretion in humans Let's solve some questions on excretion in humans Vibhor Pandey exercise