Cervical Biomechanics Flashcards

1
Q

What are two other names for the “joints of Luschka” and what do they prevent?

A

Uncinate processes, uncovertebral joints

Prevent posterolateral disc herniation

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2
Q

The superior facets of C3-C7 are positioned ________, ________, and ________.

A

Backwards, upwards, medial (BUM)

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3
Q

Normal vertebral arteries can narrow as much as ________ of their luminal size on the ________ side to cervical rotation.

A

90%, contralateral

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4
Q

The motions of C2-C7 are ________ and the coupling is ________ like.

A

Flexion-extension, Type II (rotation and side bending are the same)

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5
Q

The primary motion of AA is ________ and accounts for the first ________ of this motion.

A

Rotation, 50%

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6
Q

The coupling of OA is ________ like and exhibits this coupling whether neutral or non-neutral.

A

Type I (rotation and side bending are opposite)

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7
Q

What are the three distinct biomechanical areas of the cervical region?

A

OA (C0-C1), AA (C1-C2), C2-C7

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8
Q

Normal physiological motion does not apply to the cervical region due to the ________ of OA and AA, the ________ of the facets of C2-C7, and the ________ of the vertebral bodies, ligamentous attachments, and muscular insertions.

A

Atypical facets, oblique plane, shape

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9
Q

The coupling at the OA joint exhibits type I like motion due to the ________ and the ________.

A

Lateral atlanto-occipital membrane, morphology of the superior facets of the atlas

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