Exam 18: The Cardiovascular System: the Heart

Figure 18.2Using Figure 18.2, match the following: -Point after which pressure begins to rise in the aorta.

Paroxysmal atrial tachycardia is characterized by bursts of atrial contractions with little pause between them.

Figure 18.4Using Figure 18.4, match the following: -The layer of the serous pericardium covers the heart.

The source of blood carried to capillaries in the myocardium would be the .

Which of these vessels receives blood during ventricular systole?

Figure 18.1Using Figure 18.1, match the following: -Bundle branches.

Figure 18.4Using Figure 18.4, match the following: -What two important functions does the cardiac conduction system perform?

During the period of ventricular filling .

An older woman complains of shortness of breath and intermittent fainting spells. Her doctor runs various tests and finds that the AV node is not functioning properly. What is the suggested treatment?

Figure 18.3Using Figure 18.3, match the following: -Heart murmurs or rubs are considered to be sounds.

Figure 18.4Using Figure 18.4, match the following: -Pulmonary veins.

Cardiac muscle has more mitochondria and depends less on a continual supply of oxygen than does skeletal muscle.

Figure 18.1Using Figure 18.1, match the following: -Why is oxygen so much more critical to the heart muscle than to skeletal muscles?

The valve of the heart has three valves with chordae tendineae.

Figure 18.1Using Figure 18.1, match the following: -Purkinje fibers.

Figure 18.1Using Figure 18.1, match the following: -AV node.

As pressure in the aorta rises due to atherosclerosis, more ventricular pressure is required to open the aortic valve.

Isovolumetric contraction _.

Normal heart sounds are caused by which of the following events?

The term for pain associated with deficient blood delivery to the heart that may be caused by the Transient spasm of coronary arteries is _ _.