Radiology

3. When sound waves hit air or gas and are reflected to appear as parallel lines
6. affects the radiographic density and quantity of an x-ray.
9. The repeated exposure of an individual to small amounts of radiation accumulates day after day and never goes away, therefore radiation exposure is said to be ___.
13. Reduces scatter radiation and increases the quality of the image.
14. Shows white on a radiograph.
15. Unit of radiation dosage applied to the person taking the radiograph.
17. Filtering device that helps reduce scatter radiation and enhances the image.
19. Electromagnetic waves with wave lengths shorter than those of ultraviolet rays
21. Produced from the cathode in an x-ray machine.
23. Unit of absorbed radiation dose.
24. Should be worn outside the apron at thyroid level.
25. What contrast media is used for GI study?
27. Uneven distribution of the x-ray beam.
28. affects the radiographic contrast and quality of an x-ray
29. An unregistered assistant may operate radiographic equipment under the ___ supervision of an RVT or a DVM.
30. Clear away the unexposed silver crystals leaving the exposed silver crystals and harden the emulsion during film processing.

1. Heats up to produce electrons in the x-ray machine.
2. Flexible tube with light and camera, used to inspect the GI tract.
4. Continuous x-ray image on a screen, like a video.
5. Uses sound to produce an image
7. Source of electrons to make an image.
8. Target that electrons will hit and bounce off of.
10. Radiographic study of the spinal cord after injection of a contrast medium through a lumbar puncture.
11. The length of the cord on the hand or foot switch cannot be less than how many feet?
12. Effected by kVp, produces different shades of grey
16. Magnetic resonance imaging, uses a large magnet and radio waves and a computer to create a cross section of detailed images without radiation.
18. The overall blackness of a radiograph
20. Tissues that do not generate an echo, appears black on screen.
22. Group of contrast media that can be delivered IV.
26. Orthopedic Foundation for Animals