front 1 When atrial pressure is greater than ventricular pressure, the---- valves open. | back 1 AV |
front 2 When ventricular pressure rises above atrial pressure, the blood in the ventricle pushes the----- valves closed. | back 2 AV |
front 3 when the pressure in the --------- is greater than the pressure in the arteries, the semilunar valves are forced open. | back 3 ventricles |
front 4 When ventricular pressure is lower than -------pressure, arterial blood holds the semilunar valves closed. | back 4 arterial |
front 5 P wave | back 5 Atrial depolarization |
front 6 QRS complex or | back 6 Ventricular depolarization |
front 7 T wave | back 7 Ventricular repolarization |
front 8 PQ segment | back 8 Atrial contraction or atrial systole |
front 9 ST segment | back 9 Ventricular contraction or ventricular systole |
front 10 Place the locations of the heart's conducting system in order, beginning with the location where the heartbeat is initiated. | back 10 SA Node AV Node AV bundle Left and right bundle branches Purkinje fibers |
front 11 Name all that occur during ventricular systole. | back 11
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front 12 During the depolarization phase of cardiac muscle? | back 12 voltage-gated sodium channels open. |
front 13 Put the steps of the cardiac cycle into the correct order, starting with the beginning of the cardiac cycle. | back 13 Atrial contraction and ventricular filling Isovolumetric contraction Ventricular ejection Isovolumetric relaxation Atrial relaxation and ventricular filling |