Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Cardiac Cycle

Steps 1-6

StepsActionAction Defined
Cardiac Cycle Step 1 Isovolumetric Contraction (vol. of blood in ventricles is the EDV) a. QRS has just occurred. b. Contraction of ventricles causes the Ventricular pressure to rise above atrial pressure. AV valves CLOSE. c. Ventricular Pressure is less than Aortic Pressure and the Semilunar valves CLOSE.
Cardiac Cycle Step 2 Ejection (Vol. of blood ejected: SV) a.Contraction of ventricle -> ventricular preasure rises above Aortic pressure -> Semilunar valves OPEN. b.Ventricular pressure higher than atrial pressure -> AV valves CLOSED.
Cardiac Cycle Step 3 Ventricular Pressure drops below Aortic Pressure the T wave occurs
Cardiac Cycle Step 4 Isovolumetric Relaxation (vol. of blood in the ventricle: ESV) a. Back Pressure causes semilunar valves to CLOSE. b. AV Valves are still CLOSED.
Cardiac Cycle Step 5 Rapid Filling of Ventricles a.ventricular pressure drops below atrial pressure. b. AV valves OPEN c. Rapid ventricular filling occurs.
Cardiac Cycle Step 6 Atrial Systole Atrial Contraction. Push 10-30% more blood into the ventricle.
Created by: drdunncmt