Across
- 2. The initial flow of charge
- 5. When the charges return to the resting state
- 9. Taken by placing fingers on the carotid artery
- 11. Delivery of oxygen rich blood to the body and deoxygenated blood returning to the heart
- 14. The longest phase when blood is filling the atria
- 15. Uses x-ray and dyes to look at the blood flow through certain blood vessels
- 18. The movement of blood between the lungs and heart
- 19. Narrows the lumen of blood vessels and causes pressure to rise
Down
- 1. The natural pacemaker of the heart
- 3. The middle layer of blood vessels mostly made of smooth muscle
- 4. Shows ventricular activation when the ventricles contract
- 6. A procedure that uses a "balloon" to open partially blocked blood vessels
- 7. Expands the lumen of blood vessels and causes pressure to lower
- 8. The outermost layer of blood vessels mostly made of connective tissue
- 10. Delays spreading the electrical impulses for 0.1 seconds
- 12. Represents the start of diastole
- 13. Shows the relaxation of the ventricles
- 16. The innermost layer of blood vessels mostly made of epithelial cells
- 17. The phase when blood is sent out of the heart
- 20. Taken by placing fingers on the radial artery