Each of the following statements regarding intensifying screens is correct EXCEPT one. Which one is the EXCEPTION?
a. They work in pairs.
b. They require less radiation to produce an image.
c. They transfer x-ray energy into visible light.
d. They are sensitive to white-light exposure.
d. Intesifying screens are not sensitive to visible light. The fluorescent crystals in intensifying screens called "phosphors" give off blue or green light when exposed by x-rays.
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a. immunologic c. epidermal b. mechanical d. soft
________ cells are cells that can develop into different types of body cells; theoretically, they can repair the body.
A) Stem B) Developmental C) Both A and B D) None of the above
The bitewing technique could be considered a modification of the bisecting technique used for exposing periapical radiographs
Indicate whether the statement is true or false
Which of the following are the smallest microorganisms of all?
A) bacteria B) viruses C) fungi D) spores