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.
up vote 11 down vote. A cycle generally refers to a clock cycle (a single tick of the internal clock.) Cycles per second are also called Hertz, or Hz, thus a 2 GHz CPU (two gigahertz) goes through 2,000,000,000 cycles every second.