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Exam 28: Heart

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Question 81

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Valvular insufficiency can cause heart murmurs.

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Question 82

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Pacemaker cells in the heart possess intrinsic rhythm.

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Question 83

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One function of the skeleton of the heart is to assist in the conduction of an impulse from the atria to the ventricles.

The visceral pericardium adheres to the surface of the heart.

The QRS complex represents:

Trace a drop of blood from the right atrium to the aorta. List the specific chambers, valves, blood vessels, and lungs in proper sequence.

The mitral valve has fewer flaps than the right atrioventricular valve.

During the normal cardiac cycle, there is never a time when both the atria and ventricles are relaxed.

Match each part of the conduction system of the heart to the description of its location or function. -Structure that is located below the atrial epicardium at its junction with the superior vena cava

The value of an anastomosis is that it allows blood to bypass a blood vessel obstruction.

The cardiovascular system is sometimes called the circulatory system.

Endothelial cells are the only structures found in all parts of the circulatory system.

Match each term related to heart circulation with its corresponding location or description. -Heart chamber that receives blood from the pulmonary vein

Cardiac tamponade is a serious compression of the heart.

The valve that guards the left atrioventricular orifice is called the _____ valve.

Ventricles are the pumping chambers of the heart.

During a normal ECG, the tracing should never go below the zero mark of the graph.

What is the skeleton of the heart? What is its function and what is its impact on the conduction of an electrical impulse through the heart?

The veins in the heart are called cardiac, but the arteries in the heart are called coronary.

Match each term related to heart circulation with its corresponding location or description. -Valve through which the left ventricle pumps blood