What structure does urine pass through prior to entering the ureters?
a. Collecting duct
b. Renal pelvis
c. Urethra
d. Major calyx
ANS: B
Urine is collected in the renal pelvis, not the collecting duct or the major calyx, and then is fun-neled into the ureters. The urethra receives urine from the bladder.
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