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Exam 2 Muscles OIANB > Lumbar Extension Muscles > Flashcards

Lumbar Extension Muscles Flashcards

1
Q

Iliocostalis (origin)

A

Broad common tendon at post iliac crest
Post sacrum
SI ligament
Sacral and lower lumbar SPs

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2
Q

Iliocostalis (insertion)

A

Angles of lower ribs
(Posterior on the sharp ends of ribs)

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3
Q

Iliocostalis (action)

A

Extends and laterally bends vertebral column

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4
Q

Iliocostalis (nerve)

A

Dorsal rami of each region

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5
Q

Iliocostalis (blood)

A

Dorsal branches of lumbar arteries

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6
Q

Longissimus (origin)

A

Intermediate part of common tendon at post iliac crest

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7
Q

Longissimus (insertion)

A

Between tubercles and angles of ribs
Transverse processes of thoracic

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8
Q

Longissimus (action)

A

Extends and laterally bends vertebral column

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9
Q

Longissimus (nerve)

A

Dorsal rami of each region

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10
Q

Longissimus (blood)

A

Dorsal branches of posterior intercostal
Subcostal arteries

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11
Q

Spinalis (origin)

A

Intermediate part of common tendon at post iliac crest

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12
Q

Spinalis (insertion)

A

Spinous processes of the upper thoracic vertebrae

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13
Q

Spinalis (action)

A

Extends and laterally bends vertebral column

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14
Q

Spinalis (nerve)

A

Dorsal rami of each region

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15
Q

Spinalis (blood)

A

Dorsal branches of posterior intercostal
Subcostal arteries

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16
Q

Multifidi (origin)

A

Sacrum
Ilium

17
Q

Multifidi (insertion)

A

Spinous processes of vertebrae above
Spanning 2 to 4 segments

18
Q

Multifidi (action)

A

Stabilizes
Extension and rotation

19
Q

Multifidi (nerve)

A

Dorsal rami of lumbar region

20
Q

Multifidi (blood)

A

Dorsal branches of lateral sacral arteries

21
Q

Rotatores (origin)

A

Transverse processes

22
Q

Rotatores (insertion)

A

Lamina and spinous process of spine above
Spanning one or two segments

23
Q

Rotatores (action)

A

Stabilizes, extends, and rotates spine

24
Q

Rotatores (nerves)

A

Dorsal rami of spinal nerves

25
Q

Rotatores (blood)

A

Dorsal branches of segmental arteries

Exam 2 Muscles OIANB (11 decks)

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