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Bassett Collection of Stereoscopic Images of Human Anatomy

Radiography

Anteroposterior radiograph of dens and atlantoaxial joints

Image #209-7

KEYWORDS: Bones joints cartilage, Cervical region, Vertebral column.

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Radiography
Anteroposterior radiograph of dens and atlantoaxial joints
This film was made of an edentulous subject with the mouth opened widely to permit an unobstructed view of the upper cervical vertebrae. The film was obtained through the courtesy of Dr. Melvin J. Figley.
1 . Posterior arch of atlas (pointers indicate upper and lower margins of arch)
2 . Transverse process of atlas
3 . Mandible
4 . Body of axis (pointer indicates lower border of body)
5 . Body of vertebra C. III (pointers indicate upper and lower borders)
6 . Dens (axis)
7 . Lateral mass of atlas (upper pointer, superior articular facet; lower pointer, inferior articular facet)
8 . Transverse foramen of atlas
9 . Lateral atlantoaxial joint
10 . Upper pointer: Transverse foramen of axis Lower pointer: Transverse process of axis
11 . Superior articular process vertebra C. III
12 . Inferior articular process of axis