Across
- 4. When the inner walls of the Arteries bulge
- 5. A white blood cell that eats substances by using its membrane and engulfing the substance
- 6. A blood clot that seals off a blood vessel
- 8. A substance that forms an antibody
- 10. General white blood cells that eat foreign substances through phagocytosis
- 13. Nerve A nerve that is a part of the nervous system that controls the body back to normal
- 14. A pacemaker for the heart in the upper right atrium
- 15. Is when the SA signals to slow down the heart rate
- 16. System A system that runs parallel to the circulatory system and picks up excess fluids
Down
- 1. Carry Blood away from the heart
- 2. Factor An antigen that shows whether or not a blood type is positive or negative
- 3. A test that records the electrical activity of the heart
- 7. Carries blood toward the heart
- 9. Output The amount of blood that flows through each side of the heart per minute
- 11. When blood types mix and sticks together in clumps
- 12. When blood vessels dilate, for example blushing