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29 Cards in this Set
- Front
- Back
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physiologic motions
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flexion extension side bending, rotation, torsion
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non-physiologic motions
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shear (vertical and lateral) and compression
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flexion axis
direction of motion |
2 transverse
occiput and sphenoid rotate in opposite directions |
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flexion feel
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hands move apart and inferior
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extension feel
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hands move together and superior
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sidebending rotation axis
direction of motion |
2 vertical axes and rotation about the same A-P axis as torsion (and they rotate in the same direction)
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feel of sidebending and rotation
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right side bending -->
right hand fingers move apart and bendoutward to the right while left fingers move together and move superiorly |
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torsion axis
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AP named for HIGH wing of sphenoid
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torsion feel
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hands rotate in opposite direcitons ; index finger points up on side of torsion
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condition char'd by an asymmetrical distortion (flattening) of the skull
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plagiocephaly
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shortened front to back diameter of the skull
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brachycephaly
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lateral strain axis
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2 parallel vertical axes where the sphenoid and occiput rotate in the same directions
named for the side sphenoid moves towards |
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feel of lateral strain
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index fingers move to side of lateral strain, the pinkies move tot he opposite side, hands forming a parallelogram
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vertical strain axes
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same transverse axes as normal flexion/ext but occiput and sphenoid are rotating in the same direction ; named for position of basisphenoid
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vertical strain feel
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hands turn as if connected by an axel ; superior shear --> hands point to feet ; inferior shear --> hands point to head
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compression feel
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no motion
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CN1
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cribriform plate (ethmoid)
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CN2
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optic canal - shenoid
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CN3
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superior orbital fissure - sphenoid
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CN4
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SOF sphenoid
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cn5
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SOF- V1 sphenoid
V2 - foramen rotundum - sphen V3 - foramen ovale - sphenoid |
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CN6
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SOF sphenoid + petrosphenoid ligament
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CN7
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internal acoustic meatus - temporal
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CN8
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internal acoustic meatus - temproal
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CN9
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jugular foramen - OM suture
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CN10
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jugular foramen - OM suture
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CN11
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jugular foramen - OM suture
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CN12
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OA and occipuital intraosseus strain
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5 phenomena of PRM
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- inherent motility of the brain and spinal cord
- fluctuation of the CSF - mobility of the dural membranes - mobility of the cranial bones - involuntary mobility of the sacrum |
