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 is a vital organ in the human body. Though only the size of the fist, it pumps blood to the rest of the body by rhythmic expansion and relaxation. The frequency of this cardiac cycle is measured through heart rate. The heart rate is the number of contractions (beats) of the heart in a minute (Bianco 1-6).