HB-071 · Urinary · Assembly
Urinary system complete
Also called: urinary system Systema urinarium
3D anatomy data Classes 6-8 · Classes 9-10 · Classes 11-12 Beginner Draft - educator review
3D is not available on this device, so a picture of the model is shown instead.
Parts: right kidney; left kidney; ureters; urinary bladder; urethra
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About
The urinary system filters blood, removes wastes as urine and balances water and salts.
- 📍 Where it is
- Kidneys high on the back wall of the abdomen; ureters down to the bladder in the pelvis; urethra to the outside.
- 🧱 Structure
- Two kidneys, two ureters, the urinary bladder and the urethra.
- ⚙️ What it does
- Excretion of urea and other wastes, regulating water, salts, pH and blood pressure.
💡 Key facts
- Kidneys filter about 180 litres of fluid a day.
- Only about 1-2 litres become urine.
- The right kidney sits slightly lower because of the liver.
✗ Urine is made in the bladder
✓ The kidneys make urine; the bladder stores it.
📒 Words to know
- excretion
- removal of wastes
- urea
- nitrogen waste
- ureter
- tube from kidney to bladder
🏫 Related lessons
- Animals: life processes and reproduction Classes 6-8
- Life processes Classes 9-10
Generic GayaGnan topic lessons. Check your own board's syllabus for the exact chapter.
🔎 Sources and credits
Catalog description: Kidneys, ureters, bladder and urethra.
- OpenStax Anatomy and Physiology 2e, ch. 25 (urinary system) (accessed 2026-10-30)
- 3D models: BodyParts3D (DBCLS) and the Human Reference Atlas (HuBMAP), CC BY 4.0, with GayaGnan schematics. 3D model credits
For learning only. This site does not give medical advice, diagnosis or treatment, and it does not collect any health data.