What does the P in P wave stand for?

Related questions

1. What is a normal QRS complex?
2. Where do P waves travel fastest?
3. How are KWL charts useful?
4. What causes a QRS wave?
5. What is a heart P wave?
6. Is ST depression a heart attack?
7. What happens in the heart during the P wave?
8. What triggers angina?
9. What is cardiac depolarization and repolarization?
10. What causes ST and T wave abnormality?

Tags

1. #seismic
2. #solids
3. #liquids
4. #affected
5. #seismograph
6. #elastic
7. #faster
8. #seismology
9. #earthquake
10. #first
11. #other
12. #types
13. #waves
14. #travel
15. #gases
16. #transmitted
17. #through
18. #location
19. #called
20. #signal
21. #arrive
22. #hence