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UE Muscle Actions > Back > Flashcards

Back Flashcards

1
Q

Semispinalis Capitus

A

Bilaterally - extension (posterior sagittal rotation)

Unilaterally - rotation to opposite side

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2
Q

Semispinalis Cervicus

A

Bilaterally - cervical extension (posterior sagittal rotation)
Unilaterally - rotation to opposite side

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3
Q

Semispinalis Thoracis

A

Extension/posterior sagittal rotation

Rotation to opposite side

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4
Q

Spinalis Thoracis

A

Extension/posterior sagittal rotation

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5
Q

Spinalis Cervicis

A

Bilaterally - extension

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6
Q

Spinalis Capitis

A

Bilaterally - extension

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7
Q

Longissimus Capitis

A

Bilaterally - cervical extension

Unilaterally - lateral flexion and rotation to same side

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8
Q

Longissimus Cervicis

A

Bilaterally - cervical extension

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9
Q

Longissimus Thoracis

A

Extension and lateral flexion to same side

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10
Q

Iliocostalis Lumborum

A

Extend spine, ipsilateral flexion, some lateral flexion

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11
Q

Iliocostalis Thoracis

A

Spine extension, lateral flexion to same side

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12
Q

Iliocostalis Cervicis

A

Ext spine, lateral flexion to same side

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13
Q

Multifidus

A 
Primary stabilizer of L-spine
Anti-flexion, anti-shear action
Spine extension
Cervical
Bilaterally - extension
Unilaterally - rotation to opposite side
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14
Q

Serratus Posterior Inferior

A

May elevate ribs in dogs, but role in humans is uncertain

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15
Q

Rotatores

A

Bilaterally - extension

Unilaterally - rotation to opposite side

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16
Q

Interspinales

A

Extension of cervical spine

17
Q

Quadratus Lumborum

A

Assists in extension
Laterally flexes the lumbar vertebral column and depresses the last rib
Bilaterally - acting with the diaphragm fixes the last two ribs during respiration

18
Q

Intertransversarii

A

Lateral flexion in cervical

19
Q

Splenius Capitis

A

Rotation to same side

Extension/posterior sagittal rotation

UE Muscle Actions (6 decks)

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