Exam 12: The Cardiovascular System: the Heart

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

Which of the following is true regarding normal cardiac muscle?

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

The semilunar valve of the left side of the heart prevents backflow from the

________ release results in a decrease in the force of cardiac contractions.

In which situation would the filling time (duration of ventricular diastole) be the longest?

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

The heart is surrounded by the

The property of heart muscle in which it contracts in the absence of neural or hormonal stimulation is called

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

Which structural feature of the heart is a deep groove, usually filled with substantial amounts of fat, marking the border between the atria and the ventricles?

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

If the AV node does not receive action potentials generated by the SA node,

The release of norepinephrine at synapses in the myocardium results in

Cardiac muscle cells have abundant reserves of myoglobin, which function in

The function of an atrium is to

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

Which event marks the beginning of the cardiac cycle?

The pulmonary arteries carry blood to the

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