week 1 Back pain/vertebral column Flashcards
what does your back include?
Skin Subcutaneous tissue Vertebral column Spinal cord and meninges Ribs Nerves and vessels Muscles
how many cervical verterbral column are there?
7
how many thoracic verterbral column are there?
12
how many lumbar verterbal column are there?
5
how many sacral verterbral column are there?
5
how many coccygeal verterbral column are there?
depends on who you ask. From 1 too 4 does not really matter
how much of the verteral column does the intervertebral disc acount for?
1/4 of the length
why do you get smaller as you get older?
the intervertebral disc dehydrate and shrink–> so get smaller
when you tilt your head forward what vertebra can be palpated?
C7
where are the vertebral notches positioned?
superior and inferior to the pedicles on the vertebra
what forms the intervertebral foramen?
the inferior vertebral notch of the superior vertebra and the superior vertebral notch of the inferior vertebra plus the intervertebral disc
what passes through the interverebral foramen?
spinal nerves
what are the general key structures of the vertebra?
Vertebral foramen Processes Articular facets Vertebral arch Body
how does the body of the cervical vertebra vary?
it is smaller and has a uncus
what is the position of the uncus in cervical vertebra and what do they do?
positioned laterally and hold together adjacent bodies
how does the body of vertebra change as you go down the vertebra column?
it gets bigger/thicker
what part of the neck does the scalene muscles attach to and what is there action?
it attatched to the transverse proces and pedicles of cervical vertebrae. Allows fine movements of the neck
how does the spinous process of cervical vertebrae vary?
it is BIFID –> split
what is the directions of the articular facets of the cervical vertebrae
superior directed superoposteriorly
- inferior directed infero-anteriorly
what passes through the transverse foramina of the cervical vertebrae?
Passage of vertebral artery and vein to/from the brain
however do not pass through C7
which cervical verbrae does vertebral artery and vein not pass through?
C7 because it has a small or absent transverse foramina
why is cervical vertebrae prone to dislocation?
Relatively flat articular facets –> not the best fit
why might a sublaxation of the cervical vertebrae not compress the spinal nerves?
The transverse foramen is relatively wide
which two cervical vertebrae are atypical and what are there names?
C1–> Atlas
C2–> Axis