Congestive heart failure means that the pumping efficiency of the heart is depressed so that there is inadequate delivery of blood to body tissues.T/F
  • True
  • False
A) Quiescent periodB) ischemiaC) ectopic focusD) infarctionE) fibrillation
  • A slow heart rate increases end diastolic volume, stroke volume, and force of contraction.
  • isovolumetric contraction phase
  • A) Total heart relaxation.B) Heart muscle is deprived of oxygen.C) An abnormal pacemaker.D)Death of heart muscle cellsE) A condition of rapid and irregular or out-of-phase contraction of heart muscle cells.
  • SA node, AV node, bundle of his, bundle branch, and purkinje fibers
The papillary muscles contract after the other ventricular muscles so that they can take up the slack on the chordae tendineae before the full force of ventricular contractions sends blood against the atrioventricular (AV) valve flaps.T/F
  • True
  • False
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