Question
Explain the Term: Urinary bladder
✓
Answer
Urinary bladder: It lies at the base of the abdomen and has a thin, elastic, and muscular wall. The urinary bladder receives the urine from the ureter. The wall of the bladder relaxes and the bladder expands to hold and store the urine, The urine cannot flow out continuously because of the contraction of the right sphincter muscles at its junction with the urethra. When the bladder is full, it contracts and the ring of sphincter muscles relaxes so that the urine is forced out through the urethra.
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