Exam 8: Heart and Blood Vessels

A cerebrovascular accident causes damage to the ________.

Following damage to his heart, Jim is having a pacemaker implanted. Which one of the following components of the heart does this device replace the activity of?

These structures serve as gates that regulate blood flow from arterioles into capillaries.

Match each type of blood vessel to its description. Answers may be used more than once. -The inner walls are lined with endothelium to create a smooth, low-friction surface.

Match each of the following cardiovascular disorders to its description. -death of a portion of the heart due to an inadequate oxygen supply

All veins carry deoxygenated blood.

The condition that results when arterial endothelium becomes damaged or weakened causing the wall of the blood vessel to bulge, is a(n) ________.

Cardiovascular disorders are the number ________ cause of death in the United States.

You have been advised to check your pulse during exercise in order to monitor your heart rate. What is happening in your heart as your pulse is produced?

A rapid irregular contraction of the ventricles is known as ventricular ________.

Each of the following mechanisms plays a role in the return of blood to the heart via veins EXCEPT which one?

Blood pressure is highest in

Contraction of smooth muscle in the wall of arterioles is known as ________.

Electrical impulses that stimulate contraction of heart muscles are initiated in the

________ prevent the backflow of blood in veins.

Given the following components of the cardiac conduction cycle, which one of the following best describes the movement of the stimulus that causes a heart contraction? A. atrioventricular bundle B) sinoatrial node C) atria D) atrioventricular node E) Purkinje fibers F) ventricles A) B, C, D, A, E, F B) B, D, A, C, E, F C) D, A, E, F, B, C D) A, D, E, B, C, F E) B, C, D, F, A, E

Vasoconstriction causes an increase in the diameter of blood vessels, thus causing an increase in blood flow to the tissues.

Life-threatening aneurisms are most likely to occur in

Match each of the following cardiovascular disorders to its description. -sensation of tightness and pain in the chest associated with insufficient blood circulation to the heart

The rhythmic expansion and recoil of the wall of an artery close to the skin's surface is a(n) ________.