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,

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

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?

With each ventricular systole,

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