1 Flashcards

(36 cards)

1
Q

Flexors pull pelvis which direction? Extensors?

A

Flexors: anteriorly

Extensors: posteriorly

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2
Q

Major hip flexors

A

Iliacus and Psoas

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3
Q

What nerve pierces the piriformis?

A

Sciatic n.

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4
Q

Contraction of the piriformis may cause what?

A

Sciatica

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5
Q

Function of the piriformis

A

Abductor when hip is FLEXED
External rotator when hip is EXTENDED

*ONLY rotator that connects directly to sacrum

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6
Q

How to determine LATERALITY?

A

Pelvic Compression

Standing Flexion

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7
Q

Positive side for Standing Flexion test?

A

Innominate will lock out and move most CEPHALAD

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8
Q

Pubic shears are often seen with what?

A

Rotations

Upslips

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9
Q

What is Lumbarization of the sacrum?

A

When S1 and S2 do NOT fuse

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10
Q

Sacrum has how many vertebrae?

A

5

S1-S5

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11
Q

Where are sacral epidural nerve blocks performed?

A

Sacral hiatus

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12
Q

How many vertebrae make up the Coccyx?

A

4

C1-C4

*Lowest part of spinal cord

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13
Q

What are the 3 true pelvic ligaments?

A

Posterior sacroiliac ligaments: PSIS to 3rd/4th sacral segments

Interosseous sacroiliac ligaments: from medial sacral crest to iliac tuberosities

Anterior sacroiliac ligaments: attach from 3rd sacral segment to preauricular surface of ilium

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14
Q

What do the Sacrospinous and Sacrotuberous ligaments do?

A

Prevent apex of sacrum from moving posteriorly and superiorly (like the attic door movement…going up)

*Opposite=Iliolumbar ligament–stabilizes posterior motion..attaches 4th/5th lumbar vertebra to iliac crests

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15
Q

What does the sacrospinous ligament attach?

A

Attaches sacrum to ischial spine

*Creates greater and lesser sciatic foramen

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16
Q

Ileum vs ischium

A

Ileum=top part

Ischium=lower part

17
Q

Cranial and Sacral dura attachment

A

Cranial dura: C1-C2

Sacral: S2

18
Q

Force closure vs Form closure

A

Force closure: muscles holding object by pressure on sides

Form closure: roman arch. (Sacrum=keystone between iliums)

19
Q

3 transverse axes of motion on sacrum

A

Superior (S1): “respiratory”. At level of articular process of S2. Inhalation: base goes posterior, apex-anterior..”Think of sacral base as moving back to let in air”

Middle (S2): “Postural” or “Sacroiliac”. Flexion/extension in sitting/standing. Level of S2 body. Flexion: base goes anterior

Inferior (S3 axis): “Iliosacral”. axis for rotation of iliums on sacrum…at inferior pole of lower sacral articulation

20
Q

Cranial motions

A

Sacral base goes posteriorly and apex anteriorly during CRANIAL FLEXION

Base anterior and apex posteriorly during CRANIOSACRAL EXTENSION
(opp. of sacrum movements)

Craniosacral flexion/extension is VERY different than postural flexion/extension

W/ flexion, SBS moves up

21
Q

Nutation vs Counternutation

A

Nutation: Nodding forward (base goes anterior)

Counternutation: (base goes posterior). Occurs w/ craniosacral/SBS flexion

22
Q

Dynamic motion occurs around what axes?

23
Q

Where to place hands during 4-pt passive test

A

Contact each sacral sulci and ILA

Put force around oblique axis…looking for ease of motion

24
Q

Where to put palms during Side Bending

A

Palms on ILA’s…give cephalad force

25
Fred Mitchell Sr.: described muscle energy in 1958. Held 5 day tutorial. Son later published his manual. JAOA article by Dr. Vick- evaluated reported injuries from manipulation. Risk=1 in million S. Haldeman: unpredictability of Cerebral Vascular Ischemia..more common injuries from tennis etc
True
26
Golgi Tendon Reflex
They are stretched whenever muscles contract They detect degree of skeletal muscle tension and send this info to CNS...synapse w/ inhibitory interneurons...cause reflex relaxation of the muscle Purpose: prevent tissue disruption SUDDEN STRETCH activates golgi tendon organ.
27
Spinal somatic dysfunction involves: Vertebral segment *segment above and below the disc between the 2
True
28
Where does dura attach?
Superior transverse axis (S2) (Foramen magnum, C1, C2, S2) Motion from SBS is transferred through the dura to the sacrum *dura is like a string...it's attached at the foramen magnum in your skull and to your S2 articular processes on your sacrum. The string pulls on the sacrum, moving it forward or backward-opposite of cranial movement.
29
Sacroilial motions are for what? *So sitting on butt, you're having the sacrum move ON the ilium...so the seated flexion test is measuring sacral movement and blocking out ilium
The flexion tests
30
How to treat Forward Torsion (L on L, R on R)
Modified Sims position, Axis side down, feet together and hanging off table as you hug the table
31
How to treat Backward Torsion (L on R, R on L)
Lateral recumbent, Axis side down, one foot off the table and the other on the table, as you hug the table
32
How to treat Unilateral Sacral Extension
Sphinx position, anterior/inferior force on sacral sulcus
33
How to treat Unilateral Sacral Flexion
Prone, anterior/superior force on ILA Doctor on SIDE OF DYSFUNCTION
34
Seated flexion and pelvic compression being positive on OPPOSITE sides is a clue....only happens in TORSIONS
True
35
Sacral sulci become MORE SYMMETRIC in the Sphinx test=anterior torsion or unilateral flexion
True
36
2 muscle groups of pelvis
Levator ani Coxxygius