Anatomy: Back & Spine Flashcards
What passes through the cervical vertebrae?
spinal cord and vertebral arteries
What part of the vertebrae does the spinal cord go through?
vertebral foramen
What are the primary curvatures?
thoracic and sacral
What are the secondary curvatures?
cervical and lumbar
What is kyphosis?
accentuated thoracic curvature
What is lordosis?
accentuated lumbar curvature
What is scoliosis?
lateral cutvature of the spine
What causes kyphosis?
osteoporisis
What causes lordosis?
weight gain (pregnancy)
What makes up the vertebral arch?
2 pedicles, 2 lamina
What are the 7 vertebral processes?
spinous
transverse (2)
articular (2 superior, 2 inferior)
What is the most common location of vertebral fracture?
Pars intra-articularis (between inferior and superior articular processes
What are facet joints?
synovial joints between articular processes
What are intervertebral discs?
cartilagenous joints between vertebral bodies
What are the two parts of IV discs?
anulus fibrosus (outisde, adheres to vertebrae) nucleus pulposus (inside, shock absorber)
Where are intervertebral foramina?
between IV discs and facet joints
What runs through intervertebral foramina?
spinal nerves
What is the orientation of the facets in each spinal region?
45 degrees off transverse (cervical)
frontal (thoracic)
saggital (lumbar)
What motions happen in the lumbar spine?
flexion/extention
What motions happen in the thoracic spine?
lateral rotation
What motions happen in the cervical spine?
multi-axial
What is the most common spinal region for mechanical injury?
cervical
What makes up atlas?
anterior & posterior arches
articular processes
What do the superior facets of atlas articulate?
occipital condyles of skull
What motion does the atlanto-occipital joint provide?
nodding (yes)
What is a Jefferson fracture?
C1 fracture in multiple spots (ring shaped, can’t break in just one place)
What are the three articulations of the atlanto-axial joint?
two lateral facets
Dens