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Text in this example:
Flexion and Extension of the Neck Anterior images of a male head and neck featuring skull and neck muscles as the head is held stationary (top), extension (middle), and flexion (bottom). Lateral view of male head
and neck held in stationary
position. Lateral view of the skull
and neck muscles bent to
the back. Lateral view of the skull
the front. LifeART Collection Images Copyright © 1989-2001 by Lippincott Williams & Wilkins, Baltimore, MD