Radiographs are shadow images on an image receptor

Indicate whether the statement is true or false

TRUE
Explanation: X-rays producing an image on an image receptor is similar to light casting a shadow of an object. When a hand is placed between a light bulb and a countertop, a shadow of the hand appears on the countertop. In the same way, x-rays cast a shadow of the teeth on the image receptor.

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Ovum production begins before birth

Indicate whether the statement is true or false

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Injury to primary motor cortex on one side of the brain could cause:

a. Contralateral paralysis b. Ipsilateral paralysis c. Bilateral paralysis

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