Exam 25: The Cardiovascular System

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

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

When the ventricles relax, blood pressure in arteries is at its lowest. This pressure is called the ________ pressure.

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

The pressure in the arteries caused by ventricular contraction is called the ________ pressure.

Twisted, dilated veins that are usually seen in the legs are called ________ veins.

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

Which of the following can cause longer-than-normal heart contractions?

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

Which of the following causes chest pain only when someone pushes on the chest?

Mr. Johnson is an overweight patient with a history of myocardial infarction four years ago. He is in the office today complaining that he just doesn't feel well. He is experiencing nausea, shortness of breath, and a little dizziness. His feet and ankles seem swollen and his neck veins are prominent. For which of the following conditions might the practitioner test given the patient's symptoms?

Inflammation of the inner lining of the heart is called ________.

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

Which of these layers of the heart wall contains Purkinje fibers?

When the ________ (letter G) contracts, blood is pushed through the pulmonary semilunar valve into the pulmonary artery trunk.

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

Blood pressure is greatest in the arteries ____.

Which of the following causes dysrhythmia when elevated?

The ____ valve is between the right ventricle and the pulmonary trunk.

Which of the following decreases the heart rate?