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Movement Science 1 > Spine 2 - Muscles > Flashcards

Spine 2 - Muscles Flashcards

1
Q

Anterior/Lateral Craniocervical Region

A

Flexion

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2
Q

Posterior Craniocervical Region

A

Extension

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3
Q

Sternocleidomastoid (Anterior/Lateral)

A

Flexion of Head
Ispislateral Lateral Flexion
CONTRAlateral rotation

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4
Q

Scalenes (x3) (Anterior/Lateral)

A

Lateral Flexion & Stability

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5
Q

Levator Scapulae (Anterior/Lateral)

A

Helps counteract anterior shear

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6
Q

Suboccipital (Anterior/Lateral)

A

Fine motor of AO & AA

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7
Q

Longus Coli (Anterior/Lateral)

A

Flexion
Stabilization

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8
Q

Longus Capitis (Anterior/Lateral)

A

Flexion
Stabilization

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9
Q

Splenius Cervicis (Posterior)

A

Extension

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10
Q

Splenius Capitis (Posterior)

A

Extension
Rotation

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11
Q

Posterior Muscles of the Trunk

A

Extended during bilateral contraction
Laterally flex during unilateral contraction

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12
Q

Erector Spinae (Posterior Trunk Muscles)

A

Prime Movers in Trunk Extension
Anterior Pelvic Tilt
Lateral Flexors

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13
Q

Transversospinals - semispinalis, multifidus, rotatores (Posterior Trunk Muscles)

A

Prime Movers in Trunk Extension

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14
Q

Multifidus

A

work with obliques during rotation to oppose the flexion moment produced

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15
Q

Anterior Trunk Muscles

A

Posterior pelvic tilt activates anterior trunk muscles

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16
Q

Rectus Abdominus (Anterior Trunk)

A

Flexes Trunk

17
Q

Internal Oblique (Anterior Trunk)

A

Ipsilateral Rotation
Greatest cross-sectional area

18
Q

External Oblique (Anterior Trunk)

A

Contralateral Rotation
Greatest Moment Arm

19
Q

External Oblique (Anterior Trunk)

A

Contralateral Rotation
Greatest Moment Arm

20
Q

Transversus Abdominis (Anterior Trunk)

A

Increases Abdominal Pressure & pulls abdomen in to stabilize

21
Q

Extensor Torque > Flexor Torque

A

extensors have shorter moment arm = more torque, bigger cross sectional, fiber orientation allows for combined forces

22
Q

Iliopsoas (Additional Trunk Muscle)

A

Hip Flexor

23
Q

Quadratus Lumborum (additonal trunk m.)

A

Trunk extensor

Movement Science 1 (8 decks)

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