Exam 26: The Cardiovascular System

Blood enters the ________ (letter F) from the left ventricle to be distributed throughout the body.

The purpose of the four valves of the heart is to ____.

Which part of the cardiac conduction system is known as the pacemaker of the heart?

Mr. Johnson is overweight and admits that he rarely gets any exercise. He smokes, even though the physician warned him to stop smoking after he had a myocardial infarction four years ago. He is in the office today complaining that he just doesn't feel well. He is experiencing nausea and is a little dizzy. You notice that his feet ankles seem swollen and his neck veins are prominent. For which of the following conditions might you expect the physician to test?

Which of the following does not decrease the blood pressure?

The ________ valve (letter E) has two cusps and is located between the left atrium and the left ventricle.

The ________ valve (letter L) has three cusps, is situated between the right atrium and the right ventricle, and prevents blood from flowing back into the right atrium when the right ventricle contracts.

The pulmonary veins empty the oxygenated blood into the _______ (letter N).

A bulge or weak area in the wall of the aorta is called an aortic ________.

The atria are separated from each other by a walled membrane known as the ________.

The ventricles of the heart are separated by the ________ septum.

Body cells surrounding capillaries usually have a ____.

Blood that is low in oxygen and rich in carbon dioxide enters the ________ (letter C) of the heart.

The ________ valve (letter M) is situated between the left ventricle and the aorta and prevents blood from flowing back into the left ventricle.

The constriction of the muscular wall of an artery is called ________.

The strongest blood vessels-those that can constrict or dilate the most-are ____.

The dilation of the wall of an artery is called ________.

The ____ is thin and smooth and is the innermost layer of the heart.

Which part of the cardiac conduction system receives the impulse from the SA node?

Myocardial infarctions result from ____.