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.
During a complete cycle, each chamber undergoes a systole and a diastole. For a heart beating at 75 beats per minute, one cardiac cycle lasts about 0.8 seconds. Pressure changes The Cardiac Cycle The pulse results from Ihe rhythmic expansion of the arteries as the blood spurts from the left ventricle.