HB-074 · Urinary · Part
Ureter
Also called: ureter Ureter
3D anatomy data Classes 6-8 · Classes 9-10 · Classes 11-12 Beginner Draft - educator review
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Parts: renal pelvis; ureter; ureterovesical junction
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About
Each ureter is a narrow muscular tube that carries urine from a kidney to the bladder.
- 📍 Where it is
- From the renal pelvis down the back of the abdomen into the pelvis.
- 🧱 Structure
- About 25-30 cm long with a smooth-muscle wall and a stretchy lining.
- ⚙️ What it does
- Moves urine by peristalsis, even when lying down.
💡 Key facts
- Urine moves in squirts every few seconds.
- Ureters enter the bladder at an angle that stops backflow.
- Kidney stones can lodge in narrow points of the ureter.
✗ The ureter and urethra are the same
✓ Ureters (two) drain the kidneys; the urethra (one) drains the bladder.
📒 Words to know
- ureter
- kidney-to-bladder tube
- urethra
- bladder-to-outside tube
- peristalsis
- wave-like muscle squeezing
🏫 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: Tube carrying urine from kidney to bladder.
- 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.