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Index
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Arthro: Skull +C-spine
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Chapter 1
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Level 1
level: Level 1
Questions and Answers List
level questions: Level 1
Question
Answer
EOP to C7
Ligamentum Nuchae
Anterior arch of atlas C1, supports the dens of C2
Transverse Ligament
Dens to occiput
Alar ligament
Dens to occiput
Apical ligament
Lamina below to lamina above, elastic tissue
Ligamentum Flava
Atypical. Does not have a vertebral body or intervertebral disk. Consists mostly of a bony ring with 2 lateral masses
Atlas C1
is an extension of supraspinous ligaments that arise from SP of C7. Extends superiorly to the external occipital protuberance.
Ligamentum Nuchae
in the absence of trauma
Cervical disc herniation occurs...
Nucleus pulposus
Cervical disc herniation
C5-6 C6-7
Common site for cervical disc herniation
Limit rotation
Alar ligaments
Triaxial, condyloid synoical joint between atlas and occipital condyles
Atlanto-occipital joint
Uniaxial, planar synovial joints. Reinforced by the cruciate and alar ligaments.
Atlanto-axial joints
Between the dens of axis and anterior arch of atlas
Median pivot joint
Side bending in one direction will always be coupled with rotation in the opposite direction.
Coupled motion
controlled by the facet joints
Lateral flexion and rotation
Guide flexion, limit lateral bending.
Joints of luschka
allow passage of the vertebral artery (c1-6)
Transverse foramen
Provides space for the spinal cord
Vertebral canal
only in the cervical region
Joints of luschka are found
join body to the lamina
Pedicals
are large and easily palpable, posterolaterally
Articular pillars
Also called facet joints, are on a 45 degree angle shape and angulation of the zygapophyseal joints.
Zygapophyseal joints
are flat, between pedicles and spinous process
Laminae
Usually bifid with the exception of C7
Spinous processes
Atlas, axis, occipital condyles of skull
Upper C-spine
C3-C7
Lower c-spine
A blow to the top of the head that fractures atlas at the anterior and posterior arches.
Jefferson Fracture
Fractures of the axis that involve dens or involve a fracture across the neural arch between the superior and inferior articular facets.
Hangman fracture
Fusion of adjacent vertebrae. Most commonly between C1 and C2 or between C5 and C6
Block vertebrae
Commonly occurs in C5,6,7. Narrowing of the intervertebral foramen occurs
Osteoarthritis