# Once Upon A Time... Life 🧬 The Kidneys | Season 3, Episode 17 | FULL EPISODE

Free with YouTube's ads, posted by Once Upon a Time... (Hello Maestro).

Explore how the kidneys filter the blood, remove waste, and return useful substances back to the body.

🌍 Welcome to the Official Hello Maestro Channel! Home of the iconic Once Upon a Time... animated series – beloved by generations around the world.

🔗 https://www.youtube.com/playlist?list=PLKnJDcjkfEp2C2AZwZzOWClPK0x291Qiz

🎬 Join Maestro, our wise and whimsical guide with the long white beard, as he takes you on unforgettable journeys through time and space. From the origins of life and the story of humanity, to great explorers, inventions, the wonders of the Earth, and beyond into space – every episode is a fun and fascinating adventure.

🧠 Educational. Entertaining. Timeless.Perfect for curious minds of all ages – children, parents, teachers and lifelong learners alike.

📺 Explore our international channels: 🇫🇷 French – https://www.youtube.com/@HelloMaestrofr 🇪🇸 Spanish – https://www.youtube.com/@eraseunavezchannel 🇮🇹 Italian – https://www.youtube.com/@ceraunavoltachannel 🇵🇱 Polish – https://www.youtube.com/@bylosobiechannel 🇨🇿 Czech – https://www.youtube.com/@byljednoujedenkanal 🇸🇦 Arabic – https://www.youtube.com/@hellomaestroar 🇹🇷 Turkish – https://www.youtube.com/@birvarmisbiryokmuschannel

📲 Follow us on Instagram & Facebook for updates, behind-the-scenes, fan features, competitions and more!

🔔 Subscribe now and relive the magic – or discover it for the very first time.

#HelloMaestro #OnceUponATime #EducationalAnimation

- What it is: Full episode
- Series: [Full episodes from Once Upon a Time... (Hello Maestro)](https://invisiblenetwork.ai/library/rights-holders/series/b025fb96da3e)
- Previous episode: [Once Upon A Time... Life 🧬 The Factory of the Liver | Season 3, Episode 16 | FULL EPISODE](https://invisiblenetwork.ai/watch/rights-holders/eMasstbrWgw)
- Next episode: [Once Upon A Time... Life 🧬 The Lymphatic System | Season 3, Episode 18 | FULL EPISODE](https://invisiblenetwork.ai/watch/rights-holders/S5S9bC2Cmig)
- Length: 26 min
- Rights holder: [HelloMaestro](https://hellomaestro.fr) (its site links the channel: https://hellomaestro.fr/)
- Channel: [Once Upon a Time... (Hello Maestro)](https://www.youtube.com/channel/UClqm0TemsD02qFYKAM_PVKQ)
- Plays: Wherever YouTube plays: its rights holder sets no limit
- Who can watch here: Adult profiles and older (no rating is recorded on YouTube, so adults only)
- Made for kids: No, as YouTube designates it
- On YouTube: [Watch on YouTube](https://www.youtube.com/watch?v=D9YL_mosCEw)

It plays in YouTube's embedded player on its page here, loaded only when Play is pressed; YouTube's Terms of Service (https://www.youtube.com/t/terms) and Google's Privacy Policy (https://policies.google.com/privacy) apply to it.