Exam 12: The Heart

The tricuspid valve prevents backflow of blood from the ____________________ to the ____________________.

The endocardium is found:

The term for contraction of the chambers of the heart is ____________________.

In the cardiac cycle,which statement is true of blood flow from the ventricles to the arteries?

With respect to the heart,systole means ____ and diastole means ____.

An athlete has a resting cardiac output of 4,400 mL.What are the pulse and stroke volume?

Which of the following statements are true of the valves of the heart? (Read carefully and select all of the correct statements.)

The percent of the blood in a ventricle that is pumped out during systole is the:

In the cardiac cycle,which statement is true of blood flow from the atria to the ventricles?

The right and left AV valves close when the ____________________ contract.

The superior vena cava returns blood from the ____________________ to the ____________________ of the heart.

Which statement is NOT true of the cardiac conduction pathway?

The vein that returns blood from the lower body to the right atrium is the:

The part of the heart that initiates each beat is the:

The left ventricle pumps blood into the ____________________ and the right ventricle pumps blood into the ____________________.

The mitral valve prevents backflow of blood from the ____________________ to the ____________________.

During exercise,if cardiac output is 15,000 mL and stroke volume is 120 mL,then pulse is ____________________.

The aortic and pulmonary semilunar valves prevent backflow of blood from the:

The vessel that takes blood from the right ventricle to the lungs is the:

If cardiac output is 6,000 mL and pulse is 80 bpm,what is stroke volume?