A Radiograph of an Anteroposterior (AP) Axial Projection of the Cranium

question 153

Multiple Choice

A radiograph of an anteroposterior (AP) axial projection of the cranium reveals that the dorsum sellae is projected below the foramen magnum, but the posterior arch of C1 is visible within the foramen.Which of the following positioning errors led to this radiographic outcome?

• A)Excessive central ray (CR) angulation
• B)Insufficient CR angulation
• C)Insufficient flexion of the head and neck
• D)Tilt of the skull

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Definitions:

Base of Support

The area beneath an object or person that provides support and stability.

Narrows

A geographical feature where a body of water is constricted between two landforms.

Bedridden

A state in which a person is unable to rise from bed due to illness or disability.

Eccentric Tension

A type of muscle contraction where the muscle elongates while under tension, often engaged during the lowering phase of a lift.