Differentiate between the following:
- Ureter and Urethra
- Renal papilla and Renal pelvis
It is not given in my book. Please help.
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The ureters run from the kidneys to the bladder whilst the urethra runs from the bladder to exit the body:
The renal papillae are the site where urine drains into one of the minor calyxes of the kidney. Multiple minor calyxes join together into a major calyx, and multiple major calyxes join together to form the renal pelvis which then drains into the ureter.