How is the correct point of entry achieved when using the paralleling technique?
What will be an ideal response?
The point of entry for directing the central ray at the image receptor when using the paralleling technique for periapical radiographs may be located using the external aiming device of the image receptor positioner. Without an external indicator, care should be taken to center the image receptor within the beam of x-radiation.
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When normal cells create growths, the growths are called ________, meaning they are not cancerous.
Fill in the blank(s) with the appropriate word(s).
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The blockage of lymphatic vessels that drain excess fluids from the body causes ________.
Fill in the blank(s) with the appropriate word(s).
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