Typical stroke volume is about ________ of the volume of the left ventricle.

The cells can respond to an electrical stimulus, like all other myocardial cells:

Which of the following most accurately describes a Valsalva maneuver?

Which of the following most accurately describes a Valsalva maneuver?

You are evaluating a patient who awoke with flu-like symptoms. The patient complains of the inability to move his tongue; which cranial nerve could be compromised?

During which phase of the cardiac cycle does ventricular filling begin?

  Parasympathetic control, the braking system in the heart, is mediated by which anatomical structure?      

For a resting potential in a cardiac cell to exist, there must be an:

The first part of the aorta as it leaves the heart is the:

Which of the following occurs during depolarization of a cardiac cell?