Across
- 4. Master control center of the Nervous System.
- 8. Part of an animal where O2 from the environment diffuses into cells and CO2 diffuses into the environment.
- 11. Found in RBCs, iron containing protein that transports oxygen.
- 12. Sensory neurons carrying impulses from sense organs to Central Nervous System.
- 14. Nerve cell specialized for carrying signals from one part of the body to the other.
- 17. Cluster of air sacs. Where gas exchange occurs.
- 19. Relay point in between cells.
- 21. Branched, short, and receive incoming messages from other cells or the environment.
- 22. Another word for wind pipe.
- 23. Force of blood against walls of blood vessels.
- 25. An organ that pumps blood to the entire body, has four chambers, very complex.
- 26. Large heart chamber that pumps blood to the entire body.
Down
- 1. treatment for cardiovascular disease, compresses plaque against wall with balloon.
- 2. Part of the cardiac cycle, the relaxation phase.
- 3. Allows diffusion in between blood and tissue cells.
- 5. Largest vein in the body. Has an inferior and superior section that delivers deoxygenated blood to the heart.
- 6. Chemical that carries info from 1 neutron to another type of cell.
- 7. 1/2 of the blood, made up of water, salt, protein, and waste.
- 9. Brings info. into Central Nervous System from outside environment.
- 10. Branch off the aorta and supply heart with oxygen and blood.
- 13. Surgery when a blood vessel is removed from one's leg and sewn on the aorta to re-route the blood.
- 15. Another name for high blood pressure.
- 16. Scientific name for white blood cells.
- 18. Layers of connective tissue for protection in the brain.
- 20. Anything that causes a nerve signal to start.
- 21. Part of the Respiratory System, a sheet of muscle below the lungs.
- 24. Sets the tempo of the heart beat.