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A positive contrast agent 1. Absorbs x-ray photons 2. Is composed on elements having high atomic number 3. Is seen as a dark area on the image

When acquiring a lateral projection of the finger, it is important to keep the finger parallel to the image receptor because in this position:

The positive side of the x-ray tube is known as the

The ________ sphincter prevents reflux of stomach contents into the esophagus.

The ________ is an automatic exposure device that uses a gas-filled container.

Intrathecal contrast media administration may be performed in all of the following positions EXCEPT:

Which of the following is the BEST projection for demonstrating the intervertebral foramina of the cervical spine?

An image that has many shades of gray with few differences among them is defined as exhibiting:

As field of view increases, spatial resolution –  increases or decreases

The maximum variation between consecutive exposures when using the same technical factors is