Hypotension is diastolic blood pressure below 100 mm Hg.

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

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

The left ventricle pumps blood to the

During exercise,

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

Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following questions: What is occurring in the left atrium at the circle labeled “2” on the graph?

The continual movement of fluid through the interstitial spaces produced by capillary filtration serves which of the following functions?

With each ventricular systole,

The semilunar valves prevent the backflow of blood into the atria when the ventricles are contracting.