Flashcards in Atypical Cervicals C2 Deck (17):
axis or epostropheus
What names are given to C2?
dens or odontoid process
What unique vertebral body modification is unique to C2?
How many joint surfaces are present on the odontoid process of C2?
fibrous (amphiarthrosis) syndesmosis and synovial pivot (diarthrosis trochoid) joints
Which joint classifications are represented at the odontoid process of C2?
What is the name given to the odontoid process when the facet for the fovea dentis lies above the groove for the transverse atlantal ligament and the attachment sites for the apical-dental and alar ligaments appear to be directed posterior?
What is the name given to the odontoid process when the facet for the fovea dentis lies below the groove for the transverse atlantal ligament and the attachment sites for the apical-dental and alar ligaments appear to be directed anterior?
posterior longitudinal ligament
What ligament forms the anterior boundary for the spinal canal below C2?
superior articular process
What lies on the upper surface of the pedicle of C2?
obliquus capitis inferior muscle, posterior atlanto-axial ligament, ligamentum flavum
What attaches to the lamina of C2?
asymmetrical and slightly convex
What is the appearance of the superior articular facets of C2?
backward, upward, lateral (BUL)
What is the facet orientation of the superior articular facets of C2?
forward, lateral, down (FoLD)
What is the facet orientation of the inferior articular facets of C2?
synovial plane (diarthrosis arthrodia) joint
What is the classification of the zygapophyseal joints of C2?
What muscle attaches to the articular processes of C2?
males-57mm and females-50mm
What is the gender variation for the transverse diameter of C2?
levator scapulae, middle scalene, spenlius cervicis, intertransversarii
What muscles attach to the transverse process at C2?