Skull Radiography Routinely Includes a Posterior-Anterior (PA) Projection

question 2

Multiple Choice

Skull radiography routinely includes a posterior-anterior (PA) projection.This is intended to

• A)reduce dose to the lens of the eye.
• B)reduce dose to the cerebellum.
• C)reduce dose to the paranasal sinuses.
• D)reduce dose to the thyroid.

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Definitions:

Parasympathetic Nervous System

The division of the autonomic nervous system that calms the body, conserving its energy.

Somatic Nervous System

The division of the peripheral nervous system that controls the body’s skeletal muscles. Also called the skeletal nervous system.

Central Nervous System

The part of the nervous system consisting of the brain and spinal cord, responsible for processing and sending out neural signals.

Peripheral Nervous System

The part of the nervous system that consists of the nerves and ganglia outside of the brain and spinal cord.