EKG quiz 1 google doc questions

brooklyns quizlet

the correct names for the waves of an EKG are

P, QRS, T

most of the information on the EKG represents the electrical activity of the

mycocardium

when a positive wave of depolarization in the myocytes flows toward a positive electrode, there is a ___ deflection recorded on the EKG

positive, upward

the SA node is located

in the upper-posterior wall of the right atrium

the heart's dominate pacemaker during normal electrical activity is the

SA node

the cardiac skeleton that covers the AV valves

electrically insulate the ventricles from the atria

the ST segment and T wave represent

ventricular repolarization

the heart's dominate pacemaker is the __ and its normal rate is __

SA node, 60 to 100

which of the following has an intrinsic rate of 15 to 40 bpm

purkinje fibers

which of the following is true about atrial systole/atrial kick

additional 10 to 40% of blood enters ventricles

the ST segment represents __ and should be __

repolarization, isoelectric/flat

a biphasic wave is created when

a depolarizing wave moving perpendicularly to a positive electrode

the stickers placed on the skin that connect to the wires of the EKG machine are called

electrodes