Definition of rector for English Language Learners. : 1  a priest or minister who is in charge of a church or parish. : 2  a person who is in charge of a university or school.
Cardiac Cycle. in Physiology. Cardiac events appearing from the beginning of one heart beat to the beginning of next heart beat and repeating themselves successively. â¢ Cardiac cycle time (H.Rate = 75/min) : 0.8 sec. Systole: 0.27 sec. Diastole: 0.53 sec.
The heart rate, as calculated using the ECG paper tracing, is the number of ventricular depolarizationâs (QRS complexes) or beats occurring in one minute. The heart rate can be determined by using the six-second count method, a heart rate calculator ruler, the R-R interval method, or the triplicate method.