Thoracic Spine Flashcards
how are the facet joints oriented.
20 degrees from the frontal plane
which two ligaments are larger in the T spine
ligamentum flavum
anterior longitudinal ligament
what happens to the rib distortion during left rotation?
same side: posterior convexity, anterior flattens
opp side: posterior flattens, anterior convexity
the line of gravity falls ____ promoting ____.
anterior, flexion
what two structures do the thoracolumbar fascia surround?
erector spinae and multifidus
what is the function of the thoracolumbar fascia?
compression/stability
actions (2) and role of deep erector spinae.
extension, ipsilateral flexion, causes posterior shear
what is the unstable position for the erector spinae muscle group.
full flexion
action of superficial erector spinae.
extension & lateral flexion
what is the flexion-relaxation phenomenom?
as you flex forward greater than 2/3 ROM, motion relies on passive structures such as ligaments
Someone with a left rib hump and right lateral flexion would have what type of scoliosis.
left scoliosis
what is the motion of T1-T6 costotransverse joint?
convex on concave, rotation
what is the motion of T7-T10 costotransverse joint?
flat, gliding
what is the motion of costovertebral joint?
rotation and gliding
we lose elasticity of ____ ____ as we get older and we cannot expand our lungs as wide.
costal cartilages
where is the axis of rotation of the upper ribs?
frontal plane
where is the axis of rotation of the lower ribs?
sagittal plane
what occurs at the 1st rib’s costotranverse joint during inhalation?
moves superior and posteriro
name the primary inspiratory muscles.
diaphragm, intercostals, scalenes
what occurs during COPD? (3)
flattened diaphragm, barrel chest, ribs pulled in
in COPD patients, when is the use of scalenes the most?
end range inspiration
what muscles tighten up during end range exhalation?
abdominal muscles
the thoracic discs are similar to which other discs?
lumbar discs
what is a feature of the thoracic discs?
wedge shaped
how many joints are in the thoracic spine?
12
what is the role of the multifidi?
stabilizers
what are the functions of the ribs?
stability protection of organs ventilation UE muscle attachment LE muscle attachment
where do the crural fibers of the diaphragm attach?
L1-L3
where do the costal fibers of the diaphragm attach?
ribs
