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 Facts. Heart rate is the amount of beats, or contractions, your heart experiences within one minute. The main way to calculate the heart rate is called a pulse. During pregnancy, according to The Merck Manual, âThe amount of blood pumped by the heart (cardiac output) increases by 30 to 50%.he main way to calculate the heart rate is called a pulse. During pregnancy, according to The Merck Manual, âThe amount of blood pumped by the heart (cardiac output) increases by 30 to 50%.