Typical Cervicals Flashcards
ant bear and three-toed sloth
Which mammals have more than 7 cervical vertebrae?
two-toed sloth and manatee
Which mammals have less than 7 cervical vertebrae?
c3-c6
Which vertebrae are typical cervicals?
c1, c2, c7
Which vertebrae are the atypical cerviclas?
rectangular
What is the shape of the typical cervical body from the cranial view?
posterior height is greater than the anterior height (by a few mm)
What is the appearance of the typical cervical vertebral body from the lateral view?
posterior or kyphotic
What would be the direction of the cervical curve based on osseous features?
intervertebral disc height
What accounts for the direction of the typical cervical curve?
anterior or lordotic
What is the direction of the typical cervical curve?
c5/c6
At which vertebral couple will the cervical curve again increase intervertebral disc height?
anterior groove, posterior groove, right and left uncinate processes
What are the modifications of the superior epiphyseal rim of a typical cervical?
uncinate process, uniform process, uncovertebral process, uncus, or lateral lip
What are the names of the lateral modifications of the superior epiphyseal rim?
anterior lip, posterior lip, right and left lateral grooves
What are the modifications of the inferior epiphyseal rim of a typical cervical?
lateral groove or enchancrure
What are the names given to the lateral modifications of the inferior epiphyseal rim?
fibrous (amphiarthrosis) syndesmosis
What is the joint classification for the posterior lip-posterior groove articulation?
modified synovial saddle (diarthrosis sellar)
What is the joint classification for the uncinate process-lateral groove articulation?
cartilaginous (amphiarthrosis) symphysis
What is the joint classification for the spongy bone-intervertebral disc articulation?
5
How many joint surfaces are present on the upper surface of a typical cervical vertebral body?
5
How many joint surfaces are present on the lower surface of typical cervical vertebral body?
10
How many joint surfaces are present on the vertebral body of a typical cervical?
4
How many synovial joint surfaces are present on the vertebral body of a typical cervical?
joint of Luschka or uncovertebral joint
What is the name given to the uncinate process-lateral groove articulation?
the joint is representative of intervertebral disc aging which results in loss of lamellar integrity near the joint.
What does the recent literature suggest as to the nature of the joint of Luschka?
appears to stabilize the intervertebral disc while accommodating flexion-extension and requiring coupled motion (axial rotation with lateral bending) in the cervical spine
What is the functional significance of the joint of Luschka?