Khan Academy Static

3B: If you want to learn more about the renal system, then urine the right place! (Pun aside, the kidneys are about more than just making urine). Every thirty minutes, your kidneys filter the entire blood supply in your body. Imagine a dirty pool filled with algae. Placing a filter in this pool will cause the algae to be flushed out, and after a time you’ll have a clean, crisp blue pool to enjoy. Just like the filter for a pool, our kidneys filter the blood and remove toxic wastes. These paired organs are key to maintaining electrolyte and water homeostasis in your body.

16258_Kidney_function_and_anatomy.html

16261_Countercurrent_multiplication_in_the_kidney.html

16259_Glomerular_filtration_in_the_nephron.html

16260_Changing_glomerular_filtration_rate.html

16257_Meet_the_kidneys_.html

16264_Secondary_active_transport_in_the_nephron.html

16263_The_kidney_and_nephron.html

16262_Urination.html