Which of These Statements Regarding Radiographic Contrast Is FALSE

question 43

Multiple Choice

Which of these statements regarding radiographic contrast is FALSE?

• A) There are few shades of gray in a radiograph with short-scale contrast.
• B) Short-scale contrast describes a radiograph in which the density differences between adjacent areas are large.
• C) There are many shades of gray in a radiograph with long-scale contrast.
• D) Long-scale contrast describes a radiograph in which the density differences between adjacent areas are large.

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Definitions:

Facial Nerve

The seventh cranial nerve that controls the muscles of facial expression, taste sensation on two-thirds of the tongue, and the production of saliva and tears.

Trigeminal Nerve

A cranial nerve responsible for sensory information from the face and motor functions such as biting and chewing.

Pyramidal System

A motor system that carries voluntary movements signals from the brain to the muscles, mainly involving the cerebral cortex and the spinal cord.

Corticospinal Tract

A set of nerve pathways that travel from the cerebral cortex in the brain down the spinal cord, involved in controlling voluntary muscle movements.