The detrusor urinae muscle, also detrusor muscle, muscularis propria of the urinary bladder and (less precise) muscularis propria, is smooth muscle found in the wall of the bladder.
Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency. The period is the duration of time of one cycle in a repeating event, so the period is the reciprocal of the frequency.
Period, cycle duration, periodic time, time T to frequency f, and frequency f to cycle duration or period T â T = 1 / f and f = 1 / T. â hertz to milliseconds and frequency to angular frequency. The only kind of periods meant by people who use this phrase are periods of time, so it's a redundancy. Simply say time or period..