spine Flashcards
how many vertebrae are in the spine
24
how many of cervical, thoracic and lumbar vertebrae are there
7 cervical
12 thoracic
5 lumbar
sacrum = 5 fused vertebrae
cocyx = 3-5 fused vertabrea
what is in-between each vertebrae
intervertebral disc
what is the function of the intervertebral disc
absorb shock
what is the intervertebral disc made of
outer annulus fibrosis (fibrocartilage)
inside nucleus pulposes
what happens when you get a slipped disc
nucleus pulposes herniates out the annulus fibrosis and presses on spinal nerves
what is vertebrae c1 and c2 known as
c1= atlas
c2 = axis
what allows the nodding of the head
atlanto-occipital joints of the atlas (c1) allow the flexion and extension of head
what type of joints are the Atlanta-occipital joints
condyloid synovial joints
what allows you to turn your head left and right
c2
state all the components of a thoracic vertabrae
vertebral body
superior and inferior articular process
laminar
spinous process
transverse process
what are the joints that joint adjacent vertebrae’s together + what type of joints are they
zygaphophyseal joints
synovial joints
state all the components of a cervial vertebrae
transverse foramen
vertebral foramen
lamina
spinous process (bifid)
pedicle
transverse process
superior and inferior articular process
how does the rib articulate with the thoracic vetabrae
via the superior and inferior demifacets and theres a facet on the transverse process that articulates with the tubercle of the rib
how do adjacent vertebrae interact with each other
via the superior and inferior articulate facets