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Biomechanics > Spine Arthokinematics > Flashcards

Spine Arthokinematics Flashcards

1
Q

atlanto-occipital flexion

A

convex occipital condyles roll anterior and slide posterior

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2
Q

atlanto-occipital extension

A

convex occipital condyles roll posterior and slide anterior

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3
Q

atlanto-occipital right lateral flexion

A

convex occipital condyles roll right and slide left (roll ipsilateral and slide contralateral)

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4
Q

atlanto-occipital left lateral flexion

A

convex occipital condyles roll left and slide right (roll ipsilateral and slide contralateral)

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5
Q

atlanto-axial flexion

A

atlas tilts forward

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6
Q

atlanto-axial extension

A

atlas tilts backward

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7
Q

atlanto-axial rotation

A

atlas and transverse ligament twist around the dens, facets slide in curved path, cranium follows axis

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8
Q

lower cervical (C2-C7) flexion

A

inferior facet of top vertebra slides superior and anterior

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9
Q

lower cervical (C2-C7) extension

A

inferior facet of top vertebra slides inferior and posterior

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10
Q

lower cervical (C2-C7) lateral flexion

A

ipsilateral facet slides inferior and posterior
contralateral facet slides superior and anterior

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11
Q

lower cervical (C2-C7) rotation

A

ipsilateral facet slides inferior/posterior
contralateral facet slides superior/inferior

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12
Q

thoracic flexion

A

inferior facet of top vertebra slides superior and slightly anterior

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13
Q

thoracic extension

A

inferior facet of top vertebra slides inferior and slightly posterior

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14
Q

thoracic lateral flexion

A

ipsilateral facet slides inferior
contralateral facet slides superior

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15
Q

thoracic rotation

A

inferior facet of top vertebra slides contralaterally to the direction of rotation

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16
Q

lumbar flexion

A

inferior facet of the top vertebra slides superior

17
Q

lumbar extension

A

inferior facet of the top vertebra slides inferior

18
Q

lumbar lateral flexion

A

ipsilateral facet slides inferior
contralateral facet slides superior

19
Q

lumbar rotation

A

inferior facet of top vertebra slides contralaterally to the direction of rotation

20
Q

sacroiliac nutation

A

sacral base tilts anterior

21
Q

sacroiliac counternutation

A

sacral base tilts posteriorly

Biomechanics (6 decks)

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