Cardiac Cycle (FINAL) Flashcards Preview

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Flashcards in Cardiac Cycle (FINAL) Deck (81)
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1

What is happening to the heart when the P-Wave is being recorded? 

P-Wave

  • Depolarization of atria in response to SA node triggering

2

What is happening to the heart when the PR-Wave is being recorded?

PR Interval

  • Delay of AV node to allow filling of ventricles 

3

What is happening to the heart when the QRS-Wave is being recorded?

QRS Complex

  • Depolarization of ventricles, triggers main pumping contractions 

4

What is happening to the heart when the T-Wave is being recorded?

T-Wave

  • Ventricular repolarization 

5

What is happening to the heart when the ST-Wave is being recorded?

ST Segment

  • Beginning of ventricle repolarization
  • Should be flat 

6

Aortic valve opens 

7

A-V valve closes

8

Systole

9

Diastole 

10

Systole 

11

Ventricular Volume

12

Ventricular Pressure

13

Atrial Pressure

14

Aortic Pressure

15

A-V valve opens

16

Aortic valve closes

17

Atrial systole

18

Diastasis

19

Rapid inflow

20

Isovolumic relaxation

21

Aortic valve opens

22

Ejection

23

Isovolumic contraction

24

25

Superior vena cava

26

Sinoatrial (SA) node 

"Pacemaker"

27

Internodal pathway

28

Atrioventricular (AV) node

29

Atrioventricular (AV) bundle 

(Bundle of His) 

30

Bundle branches