What tube connects the bladder to the kidney?

Like the Anatomy questions! Wish there were more of them.

and for the record it's the urethra that connects the bladder to the outside of the body allowing us to urinate. I'm a nurse but also the adult(ish) cartoon King of the Hill brings up the urethra a lot ad Hank has a "small" one apparently.

lol appendix sits off the bowel, gallbladder is upper right abdomen and alveoli are in the lungs.

I studied anatomy and physiology.

vs.? bladder out lettre