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OS3 Exam 1 > Midline Bones And Competency 2 > Flashcards

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
Q

How are lateral strains named?

A

Position of basi-sphenoid relative to the basi-Occiput

26
Q

What axis does counternutation/nutation of the sacrum occur?

A

Superior sacral transverse axis

27
Q

What breathing motion is paired with flexion?

Extension

A

Inhalation

Exhalation

28
Q

Ethmoid axis?

Plane of motion?

A

Transverse

Sagittal

29
Q

In a right torsion SD, describe the motion of the greater wing of sphenoid and Occiput

A

Wing moves cephalad

Occiput caudad

30
Q

What are the midline / unpaired bones?

A

MOVES

Mandible
Occiput
Vomer
Ethmoid
Sphenoid

I guess frontal

31
Q

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

A

same AP axis as torsion, sphenoid and Occiput rotate in the same direction

32
Q

The ethmoid is influenced by what?

A

Sphenoid and falx cerebri

33
Q

What axis do midline bones rotate around?

Plane?

A

Transverse

Sagittal

34
Q

How does the SBS compression pattern strain manifest?

A

Restriction to all motion at SBS

35
Q

What relative changes are taking places in other bones in a SB/rotation SD?

A

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

OS3 Exam 1 (5 decks)

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