What happens after the ventricles of the heart complete their contraction?Multiple choice question.All four chambers of the heart relax for a brief interval.The atria immediately begin contraction.All four chambers of the heart contract for a brief interval.

When the atria contract during a cardiac cycle, the ventricles are __________Blank. When the ventricles contract, the atria are __________Blank.Multiple Choicecontracting; relaxingcontracting; contractingrelaxing; contractingrelaxing; relaxing

How does the heart pump blood?Multiple choice question.All four chambers contract at the same time.Each chamber contracts independently of the other chambers.The atria contract, then the ventricles, followed by relaxation of all four chambers.The right side of the heart contracts then the left side of the heart, followed by relaxation of the entire heart.

During ventricular contraction, what is the status of the atrioventricular valves?Multiple ChoiceThe mitral and tricuspid valves both are closed.The mitral and tricuspid valves both are open.The tricuspid valve is open and the mitral valve is closed.The mitral valve is opened and the tricuspid valve is closed.

When the atria are contracting you would expect:Question 2Select one or more:a.The atrioventricular valves to be open.b.Pressure in the atria to be higher than the pressure in the ventricles.c.The semilunar valves to be open.d.Blood to be moving from ventricles to atria.e.The ventricles to be in diastole.

Select all that applyWhich of the following are features of ventricles?Multiple select question.Upper chambers of the heartThin-walledLower chambers of the heartThick-walled