RT Book, Section
A1 Haight, Matthew
A1 Nguyen, Vinh
A2 Freeman, Brian S.
A2 Berger, Jeffrey S.
SR Print(0)
ID 1102569322
T1 Cardiac Cycle
T2 Anesthesiology Core Review: Part One Basic Exam
YR 2014
FD 2014
PB McGraw-Hill Education
PP New York, NY
SN 9780071821377
LK accessanesthesiology.mhmedical.com/content.aspx?aid=1102569322
RD 2024/04/19
AB The  cardiac  cycle  describes  a  sequence  of  mechanical  and  electrical  events  that  cause  a  cardiac  contraction  and  ejection  (ventricular  systole),  and  relaxation  or  filling  (ventricular  diastole).  In  general,  a  pressure  gradient  develops  between  the  chambers,  which  leads  to  ejection  of  the  stroke  volume  (SV)  and  forward  flow  of  blood  through  the  body.  Therefore,  the  cardiac  cycle  is  made  up  of  four  main  phases:  filling  phase,  isovolumetric  contraction,  ejection  phase,  and  isovolumetric  relaxation  (Figure  148-1).