Ureters - Function, Definition and Anatomy - Human Anatomy | Kenhub

The ureters are a pair of muscular, tubular structures responsible for taking urine from the kidneys to the urinary bladder for storage, prior to excretion. They are collapsible S ­shaped channels, each about 25 cm in length. They are widest at the renal pelvis and narrow progressively as they enter the urinary bladder.

The lumen of each ureter is lined by a mucosal layer of transitional epithelium that accommodates the increase in pressure when the volume of urine leaving the kidney increases, minimizing the risk of rupturing the ureters. These conduits have several in­foldings caused by multiple layers of smooth muscle throughout the ureteral wall.

In this video, we explore the anatomy of the ureters in detail. You’ll learn about the function of the ureters, as well as their location, arterial supply, venous drainage, neuronal supply and lymphatic drainage. Check out the timestamps below to jump to specific points in the video:

0:10: Definition of the ureters
0:59 Histology of the ureters
1:14 Peristalsis in the ureters
1:54 Path of the right ureter
2:05 Path of the left ureter
2:43 Arterial supply and venous drainage
3:23 Neuronal supply to the ureters
4:26 Lymphatic drainage of the ureters

Want to test your knowledge on the anatomy of the ureters? Take this quiz:

[sweetoneloves]

well explained / well done. I was kind of confused, after viewing this segment, now i know. thank you so much.

[lindokuhleandile]

very simple and straight foward video thank you very much

[maveri.k]

Thank you very much for the video.
The picture you show, demonstrates though a totally false anatomy, as the left ureter crosses the left common iliac artery, medially to its bifurcation and not the external iliac, like the right ureter and as demonstrated here.
An important detail for pelvic surgeons.

[sheilalabucay]

How to treat the uriter which the hole become too small becauce the uriter wounded and threre a kiloid growth?

[brendachick]

I love this n I wish to meet u someday

[prachigupta]

Meri ureter me 2 Stone the aur urinary junction me 1stone tha peshab bhi atak atak ky aara tha me doctor ko kayi baar dikahaya but koi fark nahi pada phir doctor bole operation karva lo mujhe operation karna hi nahi tha isliye maine yese hi youTube pe dekh raha tha phir mujhe ye khadnol+ livcon capsul Aur khadnol syarp ky bare me padha me mangwa li peshab 14din me khul gya aur 3months baad meri stone bhi nikal gyi maine ye amzon pe se mangwayi thi mujhe Koi side effect nahi hua pathari ki yese achi medcine maine nahi dekhi ☺👍, , cc

[educationwithfun]

I have a small hole in my ureter.. it may heal itself after some days?? Plz answer me.. I don't want to use stent 😭😭

[Rebecca-zrlu]

God, thank you for your goodness and mercy and faithfulness and beauty for ashes. We bind the wiles of the devil in Jesus mighty name. Amen 🙏 We bind perverse thoughts and intentions and plans and outcomes for others futures in Jesus mighty name. Amen 🙏

[shishirtripathi]

Idk it just feels like u r only dictating the notes..I mean it would be better if u explain it more precisely with better animation?? Thankyou.

[ihsanbajwa]

یوریٹر وہ نالی ہے جو پیشاب کو گردے سے مثانے میں پہنچاتی ہے ۔۔۔۔۔کیا یہ معلومات درست ہیں؟؟؟؟؟؟

[sherifadel]

I hate that ducken ureter and it's course 😢