Exam 28: Heart

Diastasis is associated with the rapid filling of the ventricles.

The muscular layer of the heart wall is the:

Explain why a transplanted heart would beat even if the nerves to the heart were not reconnected.

A major function of the pericardial sac is protection against friction.

Blood passing through the aortic semilunar valves has just left the left ventricle.

Heart sounds are made by the _____ valves.

Cuspid valves open into:

The saclike structure around the heart is the:

Because the heart is positioned between two bony structures, CPR can be an effective, lifesaving procedure.

Heart sounds are made by the closing of AV and semilunar valves.

Residual volume refers to the blood that remains in the ventricle after the ejection period.

Anastomoses are important for providing collateral circulation.

When fibers of the vagus nerve stimulate the heart, the heart rate increases.

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

Match each part of the conduction system of the heart to the description of its location or function. -Structure through which conduction moves most slowly

A third heart sound (S3), producing a "lubb-dupp-up" pattern, may be produced by a sudden myocardial stretching during rapid ventricular filling.

Match each term related to heart circulation with its corresponding location or description. -Blood vessel that empties into the right atrium

Blood leaving the right ventricle passes through the right atrioventricular valve.

Match each part of the conduction system of the heart to the description of its location or function. -Bundle that facilitates the rapid conduction to the left atrium

The Purkinje fibers actually stimulate the ventricles to contract.