Exam 20: The Heart

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

Blood returning to the heart from the systemic circuit first enters the

The backward flow of blood from a ventricle to its atrium or from a outflow vessel to its ventricle is called

Artery is to ________ as vein is to ________.

Which of the following would cause stroke volume to increase?

The bicuspid or mitral valve is located

The property of heart muscle to contract in the absence of neural or hormonal stimulation is called

Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following questions: -What occurs at the area labeled "C" on the graph?

Which of the following statements is true concerning differences between the right and left ventricles?

At a heart rate of 60 beats/minute,a cardiac cycle lasts

Figure 20-1 The Heart Use Figure 20-1 to answer the following questions: -Identify the structure labeled "6."

An equivalent term for epicardium is

The ________ lines the chambers of the heart,covers the heart valves,and is continuous with the endothelium.

The cusps (leaflets)of atrioventricular valves attach directly to

The right atrium receives blood from the

As a result of the long refractory period in the cardiac action potential,cardiac muscle cannot exhibit

What is occurring in the left atrium at the circle labeled "2" on the graph?

If there is a complete block between the SA node and the AV node,how would the ECG be affected?

There are ________ pulmonary veins.

The wall of the ________ rests on the diaphragm.