Vertebral Column Flashcards
occurs where the first sacral body may form as a separate bone, resulting in 6 lumbar vertebrae
Lumbarization
the last lumbar vertebra may be partly or completely fused with the first sacral segment
Sacralization
the lower part of the sacrum may fail to develop, if so, the coccyx will also be absent
Absence of Sacrum
a defect maybe present between the superior and inferior articular processes of a vertebra
Inter-articular defect
maybe the right or left half of a vertebra maybe absent or maybe one half may fuse with vertebrae above or below
Hemivertebrae or Butterfly Vertebrae
this defect usually occurs at L5
Inter-articular defect
it occurs usually between L5-S1
Spina Bifida
two or more vertebrae may be united forming one bone with no joint between
Fusion of Vertebrae or Bamboo Spine
the vertebral arch will incomplete with gap in midline and spinal cord may bulge or herniated out through defect resulting in swelling in the midline posteriorly
Meningocele
have small somewhat oblong bodies with their spinous process may be forked or double or bifid to crafle
Cervical vertebrae
has no body but has a ring of bone with hallow center, an anterior and posterior arches and 2 lateral masses
the 1st cervical vertebra or C1 or Atlas
has a process shaped like a large tooth
the 2nd cervical vertebra or C2 or Axis or Epistropheus
axis that projecting upward from its body that fits into the anterior arch of the atlas
Odontoid Process / Dens Odontoid
has a long spinous process which extends back beyond the spinous process
Seventh Cervical Vertebra or Vertebra Prominens
the body is somewhat heart-shaped
Thoracic vertebrae ( dorsal vertebrae )
has two small articulating surfaces or also called what?
Costal facets
they have a larger body than the cervical vertebrae
Thoracic Vertebrae