The Cardiac Cycle

6 cards

Cardiac Cycle


 
  
Created Aug 24, 2012
by
katdewolff

 

 
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1
What is the cardiac cycle?
 
The contraction phase (systole) and the relaxation phase (diastole) of the cardiac muscle that...
2
Describe step 1
 
The SA (Sinoatrial) node, located in the upper-right atrium, initiates the heartbeat.
3
Describe Step 2
 
The AV (atrioventricular) node, located in the lower interatrial septum, receives electrical...
4
Describe Step 3
 
The impulse passes to the AV bundle that separates into the right and left bundle branches.
5
Describe Step 4
 
In the right and left bundle branches, the impulse travels to the Purkinje fibers covering...
6
Describe Step 5
 
The Cycle Starts Again


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