Chp 20 Heart Review Quiz
Terms in this set (10)
Which part of the EKG represents ventricular depolarization?
Which part of the heart's conduction system slows down the action potential?
What is the long time interval where a second contraction cannot be triggered?
Which layer of the heart wall is also called the epicardium?
Visceral layer of the serous pericardium
Which chamber of the heart has the thickest walls?
Which valves open when the ventricles contract?
Which chamber receives oxygen-poor blood from the vena cavae and coronary sinus?
Which part of the cardiac muscle action potential involves closing of the Ca+2 channels and opening of more voltage-gated K+ channels?
Stroke volume X Heart Rate = _____
Where is the cardiovascular center located?
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