Across
- 2. Hydraulic chairs are used by these health care workers to higher or lower you, so that they can treat your teeth.
- 4. a device that uses a pneumatic system and is also known as an air-cushion device.
- 6. This body system is a like a hydraulic system. The blood is under pressure so that it reaches the whole body.
- 7. A machine used for moving water up and down, much like the heart.
- 10. This machine relies on air under high pressure to drive the "chuck" in and out of concrete at high speeds.
- 11. A closed system with fluid under pressure.
- 12. regular the flow of of a liquid in a hydraulic system.
- 13. Firefighters use these hydraulic powered systems to rescue victims stuck in vehicles.
- 14. This body system is a pneumatic system involving the lungs.
Down
- 1. In our lifetime, our heart pumps 4 __________ times on average without stopping.
- 3. This trio is how many hydraulic system are in an airplane.
- 5. How many valves are in the heart?
- 6. Uses a hydraulic system to lift cars off the ground.
- 8. A closed system with air under pressure.
- 9. This scientist invented a law in his own name, which states that pressure is exerted equally in all directions in a closed fluid system.