Regional Characteristics Flashcards
How many cervical verts are there?
7
What are characteristics of cervical verts?
small vertebral body that increases caudally uncinate process large vertebral foramina bifid spinous process transverse foramina which artery travel
What are the three atypical cervical verts?
Atlas C1
Axis C2
C7
How many thoracic vert are there?
12
What are characteristics of thoracic vert?
costal facets for articulation
heart shaped body
long downward projecting spinous process
What is different about T11 and T12?
they lack transverse costal facets
only articulate with one pair of ribs
What are the characteristic of a typical lumbar vert?
large bodies
small vertebral foramina
accessory processes that protrude posteriorly from the transverse process
mammillary processes on the superior articular process
short spinous process
What is different about L5?
viewed laterally it it has a wedged shape. the front of the body being much thicker than the back of the body contributing to the sacral angle
How many sacral vert are there?
5 fused wedged shaped verts
What does the sacrum articulate with?
L5
coccyx
olium
What parts are exclusive to the sacrum?
Promontory Ala (2) Auricular surfaces (2) Anterior sacral foramina (4 pairs) posterior sacral foramina (4 pairs) median sacral crest lateral sacral crest superior articular process (2) superior articular facets (2) Sacral canal sacral hiatus Cornua (2)
What is the coccyx?
4 fused rudimentary vertebrae with its own cornua
and is attachments for pelvic ligaments
What is the arterial supply of the vert. spine?
Segmental: vertebral arteries ascending arteries intercostal lumbar sacral
What type of joint does the uncinate process form on cervical vertebrae?
They form unconvertebral joints, which are synovial joints
What region does the costal process remain as mobile ribs?
Thoracic -
all have costal process, thoracic is the only area it remain as mobile ribs
How does the dens fit with the atlas?
into a socket formed by the anterior arch and transverse ligament
What are the vertebrae end plates?
hyaline cartilage that are remnants of growth plates
What is the primary function of the intervertebral disc?
provide articulations that are strong enough to bare the weight of the body but flexible to permit movements on multiple axes
