| A | B |
|---|
| What does the P wave stand for on an ECG? | Atrial Depolarization |
| What does the T wave stand for on an ECG? | Ventricular Repolarization |
| What does the QRS complex stand for on an ECG? | Ventricular Depolarization |
| From the beginning of one P-wave to the beginning of the next P-wave, constitutes ________________. | One cardiac cycle |
| In what ECG segment do you see the Ventricles contract? | ST segment |
| What does the P-R Interval stand for? | A-V Conduction time |
| What does the Q-T Interval stand for? | Ventricular contraction time |
| What does the R-R Interval stand for? | Cardia cycle time |
| Heart Rate= 1/____ | R-R Interval |
| T/F.? The ECG is a recording of cellular action potentials. | False |
| The __________________ represents the summed activity of all cells recorded from the surface of the body. | (ECG) Electrocardiogram. |
| T/F.? A heart can have normal electrical activity but abnormal mechanical activity. | True |
| The _______ side of the heart contains de-oxygenated blood. | Right |
| As an AP travels from the Atrium via the SA Node, it reaches the AV node, where it _______ spreads through. This AP then travels __________ through the ____________ and the _________________ to excite both ventricles. | Slowly/Rapidly/Bundle of HIS/Purkinje fibers. |
| The pulses of blood moving in arteries can be recorded using a device known as a _________________. | Plethsymograph |
| What electrical and mechanical events occur during the R-Wave? | Electrical- Ventricular Depolarization and Mechanical- Ventricular Contraction |
| What events take place in the cardiovascular system during the R-Wave and Pulse waves? | R-Wave= Ventricular contraction pushing blood to the rest of the body, also vasoconstriction helps with blood propulsion./ Pulse wave- The pulse of blood throughout the rest of the body. |
| What event within the heart corresponds with the "dichrotic notch"?/ Is this a LUB or DUB sound? | The Aortic Semilunar valve closing./ DUB |
| A more noticeable dichrotic notch on an ECG is indicative of _______________. | Low blood pressure. |
| What effect does cooling have on the amplitude of a pulse wave within an ECG? Why does it have thus effect? | Decreases the amplitude/ because of vasoconstriction |
| T/F.? Cooling of the arm within an experiment had effect on the heart rate and beat period. | False |
| Peripheral circulation is affected through cooling by, _________ | Vasoconstriction. |
