vertebral column and spinal cord Flashcards
cervical vert: superior and inferior articular processes
superoposteriorly
thoracic vert: superior and inferior articular processes
Superior = posterior inferior = anterior
lumbar vert: superior and inferior articular processes
superior = posteriormedially inferior = anteriorlaterally
intervertebral joints have 3 ligamentous structures
1) annulus fibrosis
2) anterior longitudinal ligament
3) posterior longitudinal ligament
nuchal ligament
becomes supraspinous ligament as goes down t and l regions
what holds the laminas between vertebra together?
ligamenta flava
where do herniated interbertebral discs usually occur
in the lumbar posterolateral direction bc posterior longitudinal ligament is not broad and heniated material takes path of least resistance
spinal nerve roots and cord impingements
central stenosis, foraminal stenosis, herniated discs
thoracic region disc herniation
sudden and forceful twisting of the midback region
scheuerman’s disease which is abnormal kyphosis
L3 herniation location
interior thigh
L4 herniation location
interior leg
L5 herniation location
lateral leg
L1 herniation location
iliac crest area
L2 herniation location
lumbar and anterior thigh
cervical verebra blood supply
vertebral and cervical arteries
thoracic region vasculature
posterior intercostal
lumbar region
subcostal and lumbar arteries
sacral region
iliolumbar arteries medial and lateral sacral arteries
what ligaments are in the ia mater
denticulate ligaments
spondylosis
broken vertebra from spondylolisthesis
pars interarticularis
located between inferior and superior articular facets between lamina and pedicles of vertebrae
spondylolisthesis
anterior displacement of one vertebra compared to rest of verterbal column
compression fracture
collapse of bone of vertebral body from trauma or degenerative disease
sacralization
fusion or partial fusion of L5 to the sacrum
-congenital
osteopenia
process of thinning or decrease in bone mass
osteoporosis
diminished bone density making bones prone to fracture