Across
- 6. a passive low-pressure system
- 8. heart innermost layer
- 9. muscular organ located in the center of the thoracic cavity behind the sternum
- 10. control the direction of blood flow through the heart
- 12. placed on 10 areas of the body to record heart activity from 12 angles and planes
- 13. patient movement of substances on skin cause
- 14. 12-Lead EKG preferred position
- 16. can occur over a 24-hour period
Down
- 1. heart middle layer
- 2. reference point created by 3 limb leads
- 3. leads that have only one pole
- 4. test performed on a treadmill
- 5. Leads I, II, & III are ____ leads
- 7. records three leads at once
- 11. heart outer layer
- 15. how many atria and ventricles is there?