Urinary System

Interactive 3D Model

Kidneys

Ureters

Bladder

Urethra

Organ Information

Welcome to the Urinary System Explorer!

Click on any organ in the 3D model to learn about its structure and function.

The urinary system is responsible for removing waste from the blood and regulating fluid balance in the body.

It consists of:

Two kidneys
Two ureters
One urinary bladder
One urethra

Test Your Knowledge: Urinary System Quiz

1. What is the primary function of the kidneys?

A) Pump blood throughout the body

B) Filter waste from blood and produce urine

C) Digest food and absorb nutrients

D) Produce hormones for growth

2. How many kidneys does a healthy human have?

A) One

B) Two

C) Three

D) Four

3. What is the tube that carries urine from the kidney to the bladder called?

A) Urethra

B) Ureter

C) Nephron

D) Tubule

4. What is the muscular organ that stores urine?

A) Kidney

B) Ureter

C) Bladder

D) Urethra

5. What is the functional unit of the kidney called?

A) Neuron

B) Nephron

C) Alveoli

D) Villi

6. Which waste product gives urine its yellow color?

A) Urea

B) Uric acid

C) Creatinine

D) Urobilin

7. Approximately how much urine can an adult bladder hold?

A) 100-200 ml

B) 300-400 ml

C) 500-600 ml

D) 700-800 ml

8. What is the process of removing waste from the body called?

A) Digestion

B) Respiration

C) Excretion

D) Circulation

9. Which hormone helps the kidneys regulate water balance?

A) Insulin

B) Adrenaline

C) Estrogen

D) Antidiuretic hormone (ADH)

10. What is the medical term for the production of urine?

A) Filtration

B) Micturition

C) Diuresis

D) Reabsorption