Urinary System | MCQs

Explanation

The kidneys are part of the urinary tract that makes urine (pee).

Urine has salts, toxins, and water that need to be filtered out of the blood.

After the kidneys make urine, it leaves the body using the rest of the urinary tract as a pathway.

Explanation

1. Filter blood: Kidneys filter waste products and excess fluid from the blood. 
2. Excrete waste: Kidneys excrete waste products, like urea and uric acid, into the urine. 

Explanation

Each kidney contains around 1 million nephrons.

They are the functional units responsible for filtering blood and producing urine.

Explanation

• The kidneys are the primary organs responsible for removing waste and excess substances from the body through urine.
• They filter the blood and regulate electrolyte levels, playing a critical role in maintaining overall bodily function.