Across
- 2. High sustained arterial pressure above 140/90 mm Hg
- 4. Transport blood to tissues and back to the heart
- 5. Right side of the heart pumping blood to the lungs for oxygenation
- 11. Low blood pressure below 100 mm Hg
- 12. Inner lining of the heart chambers
- 15. Consists of the heart and blood vessels circulating blood
Down
- 1. Condition due to lack of blood supply causing tissue death (heart attack)
- 3. Structures preventing backflow of blood in the heart chambers
- 6. Protective sac surrounding the heart with fibrous and serous layers
- 7. Spread within ventricle wall muscles
- 8. Circuit carrying blood to the lungs for oxygen exchange
- 9. Middle layer of the heart wall responsible for contraction
- 10. Heart chambers receiving blood under low pressure
- 13. Phase of heart relaxation
- 14. Heart chambers pumping blood into circulation
- 16. Vein draining head and arms into the heart