Exam 12: The Cardiovascular System: the Heart

Normal cardiac muscle is similar to normal skeletal muscle in terms of

Under conditions of hypocalcemia,

Figure 12-1 Major Internal Landmarks of the Heart Use Figure 12-1 to identify the labeled part. -Label K represents the

In ________, the cusps of the bicuspid valves do not close properly.

The right and left coronary arteries originate at the

The second heart sound is heard when

The amount of blood pumped by the left ventricle in one minute is called the

Figure 12-1 Major Internal Landmarks of the Heart Use Figure 12-1 to identify the labeled part. -Label H represents the

Figure 12-1 Major Internal Landmarks of the Heart Use Figure 12-1 to identify the labeled part. -Label G represents the

The T wave of an ECG corresponds to

Figure 12-1 Major Internal Landmarks of the Heart Use Figure 12-1 to identify the labeled part. -Label B represents the

Figure 12-1 Major Internal Landmarks of the Heart Use Figure 12-1 to identify the labeled part. -Label M represents the

Atrioventricular valves prevent backflow into the

Figure 12-1 Major Internal Landmarks of the Heart Use Figure 12-1 to identify the labeled part. -Label U represents the

Veins that return blood to the heart are also referred to as ________ vessels.

Verne is suffering from cardiac arrhythmias and is brought into the emergency room of a hospital. In the emergency room, he begins to exhibit tachycardia and as a result loses consciousness. His anxious wife asks why he has lost consciousness. What should the attending physician say to Verne's wife?

Identify the correct match.

The marginal artery branches off the

Following are events that occur during the cardiac cycle. 1) Ventricular pressure increases and exceeds pressure in the arteries. 2) Ventricles fill passively. 3) Atrial relaxation begins. 4) Atrial contraction forces a small amount of additional blood into relaxed ventricles. 5) Pressure in ventricles drops and blood flows back against cusps of semilunar valves, forcing them closed. 6) Ventricular contraction pushes AV valves closed. Choose the correct order of events in the cardiac cycle.

The great and middle cardiac veins drain blood directly into the