As a Patient Who Is Being Positioned for a Chest

question 18

Multiple Choice

As a patient who is being positioned for a chest x-ray is moved closer to the source of the x-rays, what happens to the shadows of anatomic structures seen on the chest film?

• A) They get larger.
• B) They get smaller.
• C) They get clearer.
• D) They stay the same.

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Definitions:

Arrector Pili Muscles

Small muscles attached to hair follicles that cause hair to stand upright (as in "goosebumps") in response to cold or fear.

Sebaceous Glands

Sebaceous glands are small oil-producing glands in the skin that release sebum into hair follicles, lubricating hair and the surface of the skin.

Lamellated Corpuscle

A type of nerve ending in the skin that is sensitive to pressure and vibration, also known as a Pacinian corpuscle.

Tactile Corpuscle

Sensory receptors within the dermis layer of the skin, specifically designed to detect fine touch and texture sensation through mechanical stimulation.