The cardiac cycle consists of a distinct relaxation andcontraction phase. Which term is typically used to referventricular contraction while no blood is being ejected?a. systoleb. diastolec. quiescentd. isovolumic contraction

mr. Holmes, a 72-year-old Caucasian male, suffered a heart attack which resulted in damage to a papillary muscle holding down the mitral valve. As a result the mitral valve is prolapsing with each heartbeat, which enables the backflow of blood. Where is this blood back flowing to? left ventricle, left atrium, or the aorta.

Review the mechanical events of the cardiac cycle. What is happening during each stage of the cycle? Where is blood flowing? Know which valves are open and closed at each stage and when the atria versus ventricles are contracting versus relaxing.

Put the following events in the proper order for cardiac conduction. Group of answer choices:   SA Node initiates action potential AV node initiates action potential Signal moves to AV bundle in between the ventricle Purkinje fibers lead to ventricular contraction Signal travels to AV node Purkinje fibers lead to atrial contraction   1  2                                      3                                                                                                 4