Unit 2 - VI. Regions of the Vertebral Column: Cervical Region Flashcards
Which mammals do not have seven cervical vertebrae?
the two toed sloth, manatee, ant bear, and three toed sloth
Which mammals have more than seven cervical vertebrae?
ant bear, three-toed sloth
Which mammals have less than seven cervical vertebrae?
two-toed sloth, manatee
What is the number of vertebrae in the typical cervical spine?
seven segments
Which vertebrae are typical cervicals?
C3-C6
Which vertebrae are atypical cervicals?
C1, C2, C7
What is the shape of the typical cervical vertebral body from the cranial view?
rectangular
What is the effect of aging on the cervical vertebral body?
it diminishes the overall height of the vertebral body
What is the appearance of the typical cervical vertebral body from the lateral view?
posterior height is greater than anterior height by a few millimeters
What would be the direction of the cervical curve based on osseous features?
posterior or kyphotic
What accounts for the direction of the typical cervical curve?
the intervertebral disc height
What is the direction of the typical cervical curve?
anterior or lordotic
Which vertebral couples will demonstrate a decrease in intervertebral disc height?
C2/C3 down to C4/C5
At which vertebral couple will the cervical curve again inrease intervertebral disc height?
C5/C6
What are the modifications of the superior epiphyseal rim of a typical cervical?
anterior groove, posterior groove, right and left uncinate processes
What are the names of the lateral modification of the superior epiphyseal rim?
uncinate process, unciform process, uncovertebral process, uncus or lateral lip
At what developmental age will the uncinate process first be observed?
3rd-4th fetal month
What are the modifications of the inferior epiphyseal rim of a typical cervical?
anterior lip, posterior lip, right and left lateral grooves
What are the names given to the lateral modifications of the inferior epiphyseal rim?
lateral groove or enchancrure
What is the joint classification for the anterior lip-anterior longitudinal ligament-anterior groove articulation?
fibrous (amphiarthrosis) syndesmosis
What is the joint classification for the posterior lip-posterior longitudinal ligament-posterior groove articulation?
fibrous (amphiarthrosis) syndesmosis
What is the joint classification for the uncinate process-lateral groove articulation?
modified synovial saddle (diarthrosis sellar)
What is the joint classification for the spongy bone-intervertebral disc articulation?
cartilaginous (amphiarthrosis) symphysis
What joint surfaces are present on the upper surface of the vertebral body of a typical cervical?
anterior groove, right uncinate process, left uncinate process, posterior groove and superior spongy bone surface