Exam 20: The Heart

During the T wave of the electrocardiogram,the ventricles are

Abnormal heart sounds caused by turbulent flow through faulty valves are called ________.

The volume of blood ejected from each ventricle during a contraction is called the

A heart murmur might be caused by

Calculate the cardiac output of a patient with a heart rate of 100 beats/minute and a stroke volume of 75 ml.

Which of the following would increase heart rate?

A doctor tells her nursing students that it is important to monitor patients' blood pressure when they are receiving verapamil (a calcium channel blocker).Why?

Heart rate is controlled by neurons of the cardiovascular center located in the

The superior portion of the heart where major blood vessels enter and exit is the ________.

In order to perform a CABG,a cardiac surgeon must

In cardiac muscle

If the force of ventricular contraction increases,what will happen to the end-systolic volume?

In mitral valve prolapse,the cusps of the mitral valve are pushed into the ________ atrium.

The principle that increasing the end-diastolic volume results in a corresponding increase in the stroke volume is known as ________.

Pacemaker cells in the SA node

A slower-than-normal heart rate is called ________.

Analysis of the electrocardiogram can reveal all of the following,except the

The phase in the cardiac cycle when the mitral valve is closed and the aortic valve is open is the

Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following question: -What occurs at "A" on the graph?

The ________ circuit carries blood from the aorta to the right ventricle.