Exam 18: The Heart and Cardiovascular Function

Paul has a horrible chainsaw accident and cuts several major blood vessels in his head and neck. As a result of this injury, you would expect to observe all of the following, except

Blood flow to a tissue will increase if the

There are ________ pulmonary veins.

The ________ valve opens when left ventricular pressure exceeds aortic blood pressure.

If blood pressure doubled, the blood flow through a vessel would be

Homeostatic mechanisms in response to blood loss include all of the following, except

Figure 18-1 The Heart Use Figure 18-1 to answer the following questions: -Identify the structure labeled "6."

The main control of peripheral resistance by the vasomotor centers occurs in the

Total peripheral resistance is related to all of the following, except the

Figure 18-2 Cardiac Cycle Use Figure 18-2 to answer the following questions: -What occurs at the area labeled "D" on the graph?

Which of the following would you expect to have the lowest resting heart rate?

________ are the only blood vessels whose walls are thin enough to permit blood-tissue exchange.

In cardiac muscle

When will the blood pressure be greater?

Which of the following would have the greater effect on vascular resistance?

The ________ lines the chambers of the heart, covers the heart valves, and is continuous with the endothelium.

Figure 18-1 The Heart Use Figure 18-1 to answer the following questions: -Identify the structure labeled "2 1."

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

The coronary sulcus is a groove that

Depolarization of the ventricles is represented on an electrocardiogram by the