Synonyms: vesical neck smooth muscle, neck of urinary bladder non-striated muscle, vesical neck non-striated muscle, neck of bladder involuntary muscle, smooth muscle tissue of neck of bladder, non-striated muscle of vesical neck, neck of urinary bladder smooth muscle, neck of bladder smooth muscle tissue, smooth muscle of neck of bladder, bladder neck smooth muscle, urinary bladder neck involuntary muscle, trigonal muscle, smooth muscle tissue of urinary bladder neck, bladder neck non-striated muscle, neck of bladder smooth muscle, smooth muscle tissue of vesical neck, involuntary muscle of bladder neck, smooth muscle of bladder neck, involuntary muscle of urinary bladder neck, urinary bladder neck smooth muscle tissue, non-striated muscle of bladder neck, urinary bladder neck non-striated muscle, neck of bladder non-striated muscle, involuntary muscle of vesical neck, non-striated muscle of urinary bladder neck, neck of urinary bladder smooth muscle tissue, vesical neck smooth muscle tissue, smooth muscle tissue of bladder neck, involuntary muscle of neck of bladder, non-striated muscle of neck of urinary bladder, smooth muscle of neck of urinary bladder, smooth muscle tissue of neck of urinary bladder, trigonal muscle of urinary bladder, smooth muscle of urinary bladder neck, urinary bladder neck muscle, involuntary muscle of neck of urinary bladder, neck of urinary bladder involuntary muscle, bladder neck involuntary muscle, bladder neck smooth muscle tissue, smooth muscle of vesical neck, non-striated muscle of neck of bladder, vesical neck involuntary muscle