Across
- 3. BPM (sinus rhythm) above 100
- 7. This artery takes blood to the lungs
- 9. These spread the electrical signals for the heart to pump
- 13. This is where the electrical stimulus starts
- 14. These chambers pump blood away
- 15. The largest artery
Down
- 1. Inner layer of heart made of epithelial cells
- 2. Smaller than veins
- 4. This occurs to reduce peripheral resistance
- 5. The cells that make up heart muscle
- 6. The top BP reading
- 7. Tough outer layer of the heart
- 8. The outermost layer of veins and arteries
- 10. This layer of the heart is made from muscle
- 11. Smaller than arteries
- 12. This increases by 50% when pregnant