Exam 20: The Heart

Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following questions: -What volume is labeled "G" on the graph?

Which of the following descriptions matches the term near the left fifth intercostal space?

Blood flowing into the heart from the venae cavae flows next through the ________ valve.

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

Oxygen is added to blood as it flows through the ________ circuit.

Blood leaves the right ventricle by passing through the

The contraction phase of the cardiac cycle is called

Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following questions: -What occurs at the circled label "5" on the graph?

When the left ventricle contracts,the diameter of the ventricular chamber

Blood is supplied to the myocardium by

The amount of blood remaining in the ventricle when the semilunar valve closes is the

The ________ is the volume of blood in a ventricle at the beginning of systole.

________ is to slow heart rate as ________ is to fast heart rate.

The normal pacemaker of the heart is located in

The pulmonary semilunar valve prevents backward flow into the

In cardiac muscle,the fast depolarization phase of the action potential is the result of

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

The term ________ refers to blockage in the coronary circulation.

When the semilunar valves close,the AV valves then

The ________ is a remnant of an important fetal blood vessel that once linked the pulmonary and systemic circuits.