- Shuffle
Toggle OnToggle Off
- Alphabetize
Toggle OnToggle Off
- Front First
Toggle OnToggle Off
- Both Sides
Toggle OnToggle Off
Front
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
PLAY BUTTON
PLAY BUTTON
21 Cards in this Set
- Front
- Back
|
When does SYSTOLE begin on an EKG?
|
R wave
|
|
When does SYSTOLE end on an EKG?
|
Late T wave
|
|
When does DIASTOLE begin on an EKG?
|
Late T wave
|
|
When does DIASTOLE end on an EKG?
|
R wave
|
|
What mechanical event does the R wave correspond to?
|
Closure of AV valves
|
|
What mechanical event does the ST junction correspond to?
|
Opening of AO valve
|
|
What mechanical event does the last quarter of the T wave correspond to?
|
Closure of AO valve
|
|
What mechanical event does the end of the T wave correspond to?
|
Opening of AV valves
|
|
SYSTOLE begins with what mechanical event?
|
Closure of AV valves
|
|
SYSTOLE ends with what mechanical event?
|
Closure of AO valve
|
|
DIASTOLE begins with what mechanical event?
|
Closure of AO valve
|
|
DIASTOLE ends with what mechanical event?
|
Closure of AV valves
|
|
What is the period between the R wave and the ST Junction called?
|
Isovolumic Contraction
|
|
What is the period between late in the T wave and the end of the T wave called?
|
Isovolumic Relaxation
|
|
Which heart sound is normally heard during isovolumic contraction?
|
First
|
|
Which heart sound is normally heard during isovolumic relaxation?
|
Second
|
|
1st phase of cardiac cycle:
- AV valves are open - Semilunar valves are closed - Slight increase in atrial pressure (due to contraction) - Slight increase in ventricular pressure (due to filling) - Decrease in atrial volume (due to ejection) - Increase in ventricular volume (due to filling) until max is reached |
Atrial Contraction
|
|
2nd phase of cardiac cycle:
- All valves are closed - Increase in ventricular pressures (due to contraction, abruptly opening aortic and pulmonic valves - 1st sound) - High, constant ventricular volumes (until ejection occurs) |
Isovolumic Contraction
|
|
3rd phase of cardiac cycle:
- AV valves are closed - Increasing ventricular pressures (due to contraction) exceed the aortic & pulmonary pressures - Semilunar valves open - Decreasing ventricular pressure & volume (due to ejection) EKG: ST Junction - early in T |
Rapid Ejection
|
|
4th phase of cardiac cycle:
- AV valves are closed - Semilunar valves are open - Ventricular repolarization leads decreases contraction & rate of ejection - Decreasing ventricular pressure (kinetic flow continues) - Increasing atrial pressures (due to continued filling) - EKG: early in T - late in T |
Reduced Ejection
|
|
5th phase of cardiac cycle:
- All valves are closed - Decreasing ventricular pressures (abrupt closure of aortic and pulmonic valves -2nd sound) - Increasing pressures due to continuous inflow - Low, constant ventricular volumes |
Isovolumic Relaxation
|
