Across
- 5. Found in the bloodstream, attacks non-self antigens
- 6. The outer layer of the pericardium of the heart
- 9. The inner layer of the pericardium of the heart
- 10. Platelets in the blood that assists in blood clotting
- 11. factor Rhesus factor is an antigen found on red blood cells, if present the person would have + blood, if missing the person
- 12. A layer of blood that contains white blood cells and platelets
- 13. A layer of blood that consists of 90% water and 10% proteins
- 14. The formation of all blood cells
- 16. Take blood away from the heart, most carry oxygenated blood
- 17. Single-walled blood vessels that travel through body tissues to exchange materials between the tissues and blood
- 19. Markers/flags on red blood cells to identify the cell
Down
- 1. White blood cells (WBCs)
- 2. The muscular layer of the pericardium of the heart
- 3. Take blood towards the heart, most carry deoxygenated blood, have valves in them
- 4. The 4 sections of the heart: left and right atria, left and right ventricles
- 6. Red blood cells (RBCs)
- 7. Pacemaker for the ventricles
- 8. When the heart is at rest.
- 13. The lined sac that contains the heart
- 15. When the heart is contracted
- 18. Pacemaker for the atria