Question

Choose the correct path of urine in our body:

A. kidney → ureter → urethra → urinary bladder 

B. kidney → urinary bladder → urethra → ureter 

C. kidney → ureter → urinary bladder → urethra 

D. urinary bladder → kidney → ureter → urethra

Answer 1

Urine from nephron is brought to the collecting duct of kidneys where the urine enters the ureters. There are 2 ureters, each opening from one kidney into the urinary bladder. The urinary bladder stores urine and it size increases as the amount of urine collected increases. When the CNS gives a voluntary message the muscles of bladder contract and the bladder sphincter relaxes thus excreting urine out through the urethra.