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

Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following questions: What occurs at the circled label “4” on the graph?

The path of blood flow within the systemic vascular system is:

Each of the following will cause an increase in blood pressure except

Hypotension is diastolic blood pressure below 100 mm Hg.

Figure 20-1 The Heart Use Figure 20-1 to answer the following questions: Which chamber receives oxygenated blood from the pulmonary circuit?

Increased levels of carbon dioxide in the blood will result in decreased

The left ventricle pumps blood to the

Which of the following changes does not occur during exercise compared to rest?

During exercise,