Final atlanto axial joint Flashcards
which atlanto axial joint is identified as a synovial plane diartrosis arthodia
the lateral atlanto axial joint
what are the names given to the synovial joint spaces of the median atlanto axial joint
the anterior bursa and the posterior bursa
what is the function of the transverse atlantal ligament
it is the primary stabilizer of the atlanto axial joint restricting the distance of C2 from the anterior arch of C1
What is the ADI
the atlanto dental interspace a radiographic distance between the surfaces of the anterior bursa of the median atlanto axial joint
the ADi is observed between which surfaces
the fovea dentis of C2 and the facet for fovea dentis of C2
what is the ADI of children compared with that of adults
about 4.5mm in children
a range of 2-3mm or about 2.5 in adults
what are the attachment sites for the accessory atlanto axial ligament
the base of the odontoid process and vertebral body of axis to the tubercle for the transverse atlantal ligament on the lateral mass of C1; a superior continuation may attach on the occipital bone just behind that of the alar ligament
what are the degrees of movement facilitated at the atlanto axial joint
about 20 degrees flexion extension, 40 degrees one side axial rotation, and 5 degrees of lateral bending
the occiput C1-C2 joint complex accounts for what percent of all cervical axial rotation
about 60%
which atlanto axial joint is identifies as a synovial pivot diarthrosis trochoid
the median atlanto axial joint
