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Question

The urine is temporarily stored in the bladder.
  1. False
  2. True


Solution

The correct option is B True
The urine is temporarily stored in the bladder. There are two sets of circular sphincter muscles in the bladder. When the bladder is filling up both these muscles are constricted, so the exit is closed. However, as the pressure of the urine increases the walls of the bladder are stretched and this triggers off an automatic reflex action which causes the upper sphincter to relax. But the lower sphincter is under the control of the brain. So urine can still be retained until this muscle is relaxed too.

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