Movements Of Vertebral Column

Question 1

Amount of flex/ext. varies from region to region of the vertebral column. What ˚ is attributed to each region? 75% of flex/ext. of the vertebral column is in what region (*)?

Answer 1

Cervical = 15˚
^Thoracic = 4˚
Lower thoracic = 12˚
*Lumbar = 15˚

Question 2

During flexion of the vertebral column…
Discs compressed ___.
Laminae + SPs ___.
PLL, ligamentum flavum, interspinous ligaments, post. IVDs are ___.
Extensor muscles resist ___.
Inf. Articular processes of sup. Vertebrae glide ___.
Joint capsules of zygapophyseal joints become ___.

Answer 2

Ant.
Spread apart
Tensed
Flexion
Superiorly
Taut

Question 3

During extension of the vertebral column…
Everything is opposite of flexion
ALL + ant. Fibers of annulus fibrosis ___.
Discs compress ___.

Answer 3

Tense
Posteriorly

Question 4

Lateral flexion of the vertebral column…
Is greatest in ___.
IVDs compressed on ___ side, tensed on ___ side.
Restricted in ___ due to ___.
Coupled w/ ___.

Answer 4

Cervical (10˚, 6˚ in T+L)
Flexed, contra.
Thoracic, ribs
Rotation

Question 5

Rotation of the vertebral column involves…
Twisting of vertebrae relative to surrounding vertebra
Torsional deformation of ___.
___ results from combined rot. Of all vertebrae coupled w/ lat. flex. And flex/ext.
How does the amount of rotation permitted vary by level: where is it moderate? Greatest? Lowest?

Answer 5

Discs
Circumduction
Cervical, thoracic, lumbar

Question 6

Movement in the cervical region…
Orientation of ___ facilitates flex./ext.
Lat. flex. Of vertebral column coupled w/ ___ rotation of vertebral bodies

Answer 6

Sup. Articular facets
Ipsi.

Question 7

Movement in thoracic region…
Lat. flex. Of ^thoracic coupled w/ ___ rot. Of vertebral bodies.
Lat. flex. Of lower thoracic coupled w/ ___ rot. Of vertebral bodies
Vertical articular facets limit ___.
Overlapping laminae + SPs limit ___.
Articular facets along horizontal arc permit considerable ___.
Lat. flex. Of thoracic is ___ but limited by ___.

Answer 7

Ipsi.
Contra.
Flexion
Extension
Rotation
Free, ribs

Question 8

Movement in lumbar region…
___ is extremely limited b/c articular facets oriented along parasagittal planes.
Lat. flex. Coupled w/ ___ rotation of vertebral bodies.
Flex., ext., and lat. flex. Occur ___.

Answer 8

Rotation
Contra.
Freely