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C1
(redirected from C-1)

   Also found in: Wikipedia 0.02 sec.
C1, C2, . . .,
1 symbols for cervical nerves.
2 symbols for cervical vertebrae.

C1
Atlas Anatomy A unique ring-shaped vertebrae without a vertebral body and no adjacent disc, which has narrow anterior and posterior arches connected to stout wedge-shaped lateral masses; C1 transitions a rigid skull and a mobile cervical spine, acting like a 'washer', buffering various forces; transverse atlantal ligament and alar ligaments stabilize C1 on C2; atlantoaxial joint ROM is 40º rotation, 10º flexion and 10º lateral bending. See C1 fracture.


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