Sharp EKG study guide

Sharp EKG study guide
Study online at https://quizlet.com/_8bfkgh

1. 3 layers of the pericardium, myocardium, endocardium
heart

2. Pericardium Primary function to provide lubrication, preventing friction as the heart beats

3. Myocardium -responsible for the hearts ability to contract
-thick muscle layer

4. Myocardium Chamber thickness is related to the amount of resistance the muscle must over-
come to pulp blood out of the chamber

5. endocardium -smooth, thin layer of tissue that lines the heart chambers & valvues
-Allows blood to flow easily thru the heart

6. Two types of car- pacemaker cells and myocardial cells
diac cells

7. 1st degree HB Prolonged PR interval

8. 2nd degree type PR interval gets longer... going going gone.
1 - wenkcbach -
mobitz II

9. 2nd degree type Dropped QRS.. PR interval normal.
2 AV Block or mo-
bitz II

10. 3rd degree AVB = P-P wave consistent; but P & QRS don't match up
complete HB

11. P wave atrial depolarization

12. PR interval repre- Onset (activation) of atrial depolarization to onset of ventricular depolarization.
sents?

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