1. Ways of Examining Heart
Zdeněk Jelínek, 3. C

2. Content
Heart
Electrocardiography
Measuring blood pressure

3. Heart 2 atriums + 2 ventricles Systole = contraction
Diastole = relaxation
The heart pumps 4,5 liters per minute

4. Heart

5. Heart
Electrical conduction system - making and spreading the electrical impulse
Cardiac muscle cells - contraction

6. Electrical conduction system

7. Electrocardiography Monitoring electrical heart activity
Electrocardiograph, electrocardiogram
Willem Einthoven invented the first electrocardiograph
W. Einthoven recieved the Nobel prize

9. Electrocardiograph Bipolar limb leads (3)
Augmented unipolar limb leads (3)
Unipolar chest leads(6)

10. Location of electrodes on the chest

11. Electrocardiogram Record of electrical heart activity
Waves, segments and intervals
12 curves - 1 for each lead

12. Electrocardiogram curve

13. Derivative methods
Holter monitoring - monitoring electrical heart activity for 24 hours
Stress tests - monitoring electrical heart activity under stress

14. Measuring blood pressure
Systolic - contraction pressure
Diastolic - relaxation pressure
Sound effects of turbulent flow

15. Thank you for your attention