Midline Bones And Competency 2 Flashcards

1
Q

How do the palatines move in SBS flexion?

A

External rotation

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2
Q

When the SBS is in flexion, what does the ethmoid follow?

What follows the sphenoid’s motion?

A

Occiput

Vomer

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3
Q

Does rotation occur towards or away from the side of convexity in rotation/Side-bending SD?

A

Towards

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4
Q

Torsion axis?

Plane of motion?

A

A/P

coronal

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5
Q

Why does the spinal membranes cause sacral motion with the CRI?

A

The dura

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6
Q

What causes lateral strain pattern?

How?

A

Trauma

Lateral force to one side of anterior cranium or opposite side of posterior cranium

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7
Q

How do the dr’s hands move during right torsion strain pattern?

A

Hands twist in opposite directions, Right thumb points back at Dr.
Left thumb points away

Suck your thumb for which side is the torsion

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8
Q

In what strain pattern do the Occiput and sphenoid rotate in the same direction?

A

Vertical strain

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9
Q

Right torsion strain pattern means what?

A

As SBS flexion occurs, the right greater sphenoid wing moves cephalad while the right Occiput moves caudad

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10
Q

Superior vertical strain, how do the Occiput and sphenoid move?

Thumbs do what?

A

Rotate anteriorly around their transverse axis

Thumbs move away from physician

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11
Q

What changes in other bones are occurring in torsion patterns?

A

Toilet Paper MOFTS

Temporal and parietal bones - external rot. On side of torsion
Mandible - shifted towards side of torsion
Orbit - smaller on side of torsion
Falx cerebri - ant. End rotates w/sphenoid, post. W/Occiput
Tentorium cerebelli - Sidebend same direction as Occiput rotates
Spinal dura - inferior on side of low Occiput

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12
Q

Vertical strain axis?

Plane of motion?

A

Transverse

Sagittal

VTS

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13
Q

What is the motion of the apex of the sacrum in SBS flexion?

A

Anterior

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14
Q

Torsion is named for what?

A

Position of the greater wing of the sphenoid during cranial flexion

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15
Q

If a baby is delivered with forceps, what shape will it take?

Due to what pattern?

A

Parallelogram

Lateral strain

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16
Q

Lateral masses act as paired bones into _____ during cranial flexion?

Extension?

A

external rotation

Internal rotations

17
Q

Lateral strain pattern axis?

Plane of motion?

A

Vertical axis

Transverse plane

LVT

18
Q

What causes SBS compression?

A

Trauma or pressure to head or face, back of head, or entire periphery

19
Q

Motion of sacral base during SBS flexion?

Extension?

A

Posterior

Anterior

20
Q

How do the dr.’s hands move in a left SB/rotation SD?

A

Left hand moves down and out and fingers spread out, right hand moves up and crunches in

21
Q

In a Right side-bending rotation strain pattern, during SBS flexion said, how does the sphenoid and Occiput move?

A

Sphenoid rotates left, Occiput right around sup/inf axis defined as right SB
Occiput and sphenoid rotate right around A/P axis, defined as right rotation

22
Q

In a left lateral strain, how do the Occiput and sphenoid rotate?

A

Rotate to the right/anterior

23
Q

What motions occur with SBS side-bending/rotation pattern for side-bending (axis and plane)?

A

SB as rotation of the Occiput and sphenoid around 2 vertical axes, motion occurs in transverse plane

24
Q

What will the CRI be like in a compression?

A

Slow, low amplitude, difficult to feel, weak

25
How are lateral strains named?
Position of basi-sphenoid relative to the basi-Occiput
26
What axis does counternutation/nutation of the sacrum occur?
Superior sacral transverse axis
27
What breathing motion is paired with flexion? Extension
Inhalation Exhalation
28
Ethmoid axis? Plane of motion?
Transverse Sagittal
29
In a right torsion SD, describe the motion of the greater wing of sphenoid and Occiput
Wing moves cephalad Occiput caudad
30
What are the midline / unpaired bones?
MOVES ``` Mandible Occiput Vomer Ethmoid Sphenoid ``` I guess frontal
31
What motions occur with SBS side-bending/rotation pattern for rotation (axis and plane)?
same AP axis as torsion, sphenoid and Occiput rotate in the same direction
32
The ethmoid is influenced by what?
Sphenoid and falx cerebri
33
What axis do midline bones rotate around? Plane?
Transverse Sagittal
34
How does the SBS compression pattern strain manifest?
Restriction to all motion at SBS
35
What relative changes are taking places in other bones in a SB/rotation SD?
Toilet Paper MOFFTS Temporal and parietal bones - external rot. On convex side Mandible - shifted to convex side Orbit and frontal bone - anterior on convex side Falx cerebri - SB following convexity of SB of SBS Tentorium cerebelli - follows occipital motion (FOM) Spinal dura - inferior on side of convexity, dropping sacral base inferiorly on that side