TED-Ed: How do your kidneys work? - Emma Bryce

The video explains the vital functions of kidneys, including filtering blood, removing waste, and regulating water levels. Kidneys use nephrons to filter blood, reabsorb necessary nutrients, and excrete waste as urine. They also regulate body fluid levels and secrete hormones like renin and erythropoietin. Without kidneys, waste would accumulate, leading to system overload.

What are the main roles of the kidneys in the human body?

How do the kidneys filter blood and what structures are involved in this process?

What happens to waste products in the blood as it passes through the kidneys?

Explain how the kidneys regulate water levels in the body.

What hormones do the kidneys secrete and what are their functions?