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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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


Anatomy electrical and mechanical of the heart

Pericardium Outermost layer of the heart
Myocardium Middle layer of the heart, thickest part of the heart, where the electrical conduction lays in.
Atrium Holds and receives the supplies of blood
Right Atrium receives Deoxygenated blood
Left Atrium receives Oxygenated blood
Valves Prevents back flow, 1 way valve
Ventricles primary function is Main pumping chambers
Septals primary function Separates Left and Right sides of the heart to keep deoxygenated and oxygenated blood from mixing
Apex Lowest portion of the heart (tip)
Base Top part of the heart
Cardiac Conduction Pathway Blood Flow of the Heart
Lays inside the Myocardium Sino Atrial Node " SA Node "
Sino Atrial Node (SA Node) Primary Pacemaker
SA Node conducts a HR of 60-100 bpm
SA Node is located Upper part of the R Atrium close to the Superior Vena Cava
Atrial ventricular Node (AV Node) acts as Secondary Pacemaker
Av Node conducts a HR of 40-60 bpm
AV Node holds and Slows down electrical impulses
Bundle of HIS "AV Bundle" function is To separate Impulses
Purkinjie Fibers Tertiary Pace Maker
Purkinjie Fibers distributes Impulses to the ventricles. 20-40 HR
Myocardial cells have what two phases Electrical and mechanical
Depolarization = Contraction = systolic
Repolarization = Return to relax = diastolic
Polarization= Full rest
Automaticity Rhythmic, impulse of the heart, SA node
Excitability Respond and react to other cells
Conductivity Relays impulses to the neighboring cells
Contractility Cells contract
From the P wave to the end of the cardiac cycle represents Action Potential,(Depolarization) &Repolarization
The end of the t-wave to the beginning of the Next Cycle Re-factory Period (Polarization)
Electrical proceeds Mechanical
Layer beneath the pericardium. The serious membrane that forms the innermost layer of the pericardium and the outer surface of the heart Epicardium
Electrical Phases Depolarization, Repolarization
Mechanical phases Systolic, Diastolic
Created by: Georgia1984



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

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