RT Book, Section
A1 Ionescu, Adrian M.
A1 Suyderhoud, Johan P.
A2 Freeman, Brian S.
A2 Berger, Jeffrey S.
SR Print(0)
ID 1102569399
T1 Myocardial Contractility
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=1102569399
RD 2024/04/19
AB The  heart  is  made  up  of  striated  muscle  of  both  atria  and  ventricles,  along  with  the  pacemaker  and  action-potential  conducting  tissue.  The  pacemaker  cells  of  the  myocardium  have  a  unique,  self-excitatory  property,  which  allows  myocardial  contractility  to  occur  independently  of  sympathetic  or  parasympathetic  nervous  system  input.  The  intercalated  discs  allow  the  fast,  uniform,  and  sequential  transmission  of  electrical  activity  (action  potentials)  between  myocytes  to  generate  an  effective  cardiac  output  to  perfuse  vital  tissue.