Across
- 2. rate The number of heartbeats per minute.
- 3. The muscular middle layer of the heart wall responsible for the heart's contractions.
- 7. Blood vessels that carry oxygenated blood away from the heart to the rest of the body
- 9. The two lower chambers of the heart.
- 11. Blood Cells Blood cells involved in the immune response to defend against infections.
- 12. The wall of tissue that separates the left and right side of the heart.
- 15. The two upper chambers of the heart.
Down
- 1. The liquid components of blood that carries cells, nutrients, hormones, and waste products.
- 4. Small blood vessels that connect arteries and veins, facilitating the exchange of nutrients and gases between blood and tissues.
- 5. Blood Cells Blood cells that contain hemoglobin and transport oxygen.
- 6. Blood vessels that carry deoxygenated blood back to the heart.
- 8. A test that records the electrical activity if the heart.
- 10. The largest artery in the body, originating from the left ventricle, then carrying oxygenated blood to the rest of the body.
- 13. Pertains to the muscular layer of the heart (myocardium)
- 14. A structure within the heart that ensures blood flows in the correct direction.