Which of the events below does not occur when the semilunar valves are open?

Ventricles are in diastole

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

closure of the heart valves

Hemorrhage with a large loss of blood causes ________.

a lowering of blood pressure due to change in cardiac output

The left ventricular wall of the heart is thicker than the right wall in order to ________

pump blood with greater pressure

Damage to the ________ is referred to as heart block.

AV node

The P wave of a normal electrocardiogram indicates ________.

atrial depolarization

Blood within the pulmonary veins returns to the ________.

left atrium

Small muscle masses attached to the chordae tendineae are the ________.

papillary muscles

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

angina pectoris

To auscultate the aortic semilunar valve, you would place your stethoscope in the ________.

second intercostal space to the right of the sternum