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Gross Anatomy Muscles > Vertebral Column and Deep Back Muscles > Flashcards

Vertebral Column and Deep Back Muscles Flashcards

1
Q

Splenius Capitis

Origin

A
  • Nuchal ligament

- spinous processes of C7-T3 or T4 vertebrae

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2
Q

Splenius Capitis

Insertion

A
  • Fibers run superolaterally to mastoid process (oftemporal bone)
  • lateralthird of superior nuchal line (of occipital bone)
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3
Q

Splenius Capitis

Innervation

A

Dorsal rami of spinal nerves

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4
Q

Splenius Capitis

Actions

A
  • ipsilat laterally flexes & rotates head & neck

- bilat extends head & neck

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5
Q

Splenius Cervicis

Origin

A
  • Nuchal ligament

- spinous processes of C7-T6 vertebrae

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6
Q

Splenius Cervicis

Insertion

A

-Tubercles of transverse processes of C1-C3

vertebrae

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7
Q

Splenius Cervicis

Innervation

A

Dorsal rami of spinal nerves

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8
Q

Splenius Cervicis

Action

A
  • ipsilat laterally flexes & rotates head & neck

- bilat extends head & neck

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9
Q

Ilicostalis

Origin

A
  • Arises by a broad tendon from posterior part of iliac crest
  • posterior surface of sacrum
  • sacroiliac ligaments
  • sacral and inferior lumbar spinous processes –supraspinousligament
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10
Q

Ilicostalis

Insertion

A

Lumborum, Thoracis, Cervicis: fibers run superiorly to angles of lower ribs and cervical
transverse processes

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11
Q

Ilicostalis

Innervation

A

Dorsal rami of spinal nerves

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12
Q

Ilicostalis

Action

A
  • ipsilat laterally flexes trunk

- bilat extends trunk

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13
Q

Longissimus

Origin

A
  • Arises by a broad tendon from posterior part of iliac crest
  • posterior surface of sacrum
  • sacroiliac ligaments
  • sacral and inferior lumbar spinous processes
  • supraspinous ligament
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14
Q

Longissimus

Insertion

A
  • Thoracis: ribs between tubercles and angles, and thoracic transverse processes.
  • Cervicis: transverse processes in cervical
    region.
  • Capitis: mastoid process of temporal bone
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15
Q

Longissimus

Innervation

A

Dorsal rami of spinal nerves

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16
Q

Longissimus

Action

A
  • ipsilat laterally flexes trunk

- bilat extends trunk

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17
Q

Spinalis

Origin

A

-Arises by a broad tendon from posterior part of iliac crest
-posterior surface of sacrum sacroiliac ligaments
-sacral and inferior lumbar spinous
processes
-supraspinous ligament

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18
Q

Spinalis

Insertion

A

Thoracis, Cervicis, Capitis: fibers run superiorly to spinous processes in upper
thoracic region and to cranium

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19
Q

Spinalis

Innervation

A

Dorsal rami of spinal nerves

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20
Q

Spinalis

Action

A
  • ipsilat laterally flexes trunk

- bilat extends trunk

21
Q

Transversospinalis Semispinalis

Origin

A

-Transverse processes

22
Q

Transversospinalis Semispinalis

Insertion

A

-Spinous processes of more superior vertebrae

23
Q

Transversospinalis Semispinalis

Innervation

A

-Dorsal rami of spinal nerves

24
Q

Transversospinalis Semispinalis

Action

A

Stabilizes vertebrae during local movements of

vertebral column

25
Q

Transversospinalis Multifidus

Origin

A
  • Arises from posterior sacrum
  • posterior superior iliac spine of ilium
  • aponeurosis of erector spinae
  • sacroiliac ligaments
  • mammillary processes of lumbar vertebrae
  • transverse processes of T1-T3
  • articular processes of C4-C7
26
Q

Transversospinalis Multifidus

Insertion

A

-Thickest in lumbar region
-fibers pass obliquely superomedially to entire
length of spinous processes, spanning 2-4
segments superior to origin

27
Q

Transversospinalis Multifidus

Innervation

A

-Dorsal rami of spinal nerves

28
Q

Transversospinalis Multifidus

Action

A

Stabilizes vertebrae during local movements of

vertebral column

29
Q

Transversospinalis Rotatores

Origin

A
  • Arise from transverse processes of vertebrae

- best developed in thoracic region

30
Q

Transversospinalis Rotatores

Insertion

A

-Fibers pass superomedially to attach to junction of lamina and transverse process or spinous process of vertebra immediately (brevis) or 2 segments superior (longus) to
vertebra of attachment

31
Q

Transversospinalis Rotatores

Innervation

A

-Dorsal rami of spinal nerves

32
Q

Transversospinalis Rotatores

Action

A
  • Stabilizes vertebrae during local movements of vertebral column
  • Assists with and rotatory movements of vertebral column
32
Q

Superior Oblique of the Head (Obliquus Capitis Superior)

Origio

A

-Transverse processes of C1

vertebrae

33
Q

Superior Oblique of the Head (Obliquus Capitis Superior)

Insertion

A

-Occipital bone between superior and inferior

nuchal lines

34
Q

Superior Oblique of the Head (Obliquus Capitis Superior)

Innervation

A

-Suboccipital nerve (dorsal ramus of C1)

35
Q

Superior Oblique of the Head (Obliquus Capitis Superior)

Action

A
  • ipsilat lateral flexion of head & neck

- bilat extension of head & neck

36
Q

Inferior Oblique of the Head (Obliquus Capitis Inferior)

Origin

A

-Spinous process of C2 vertebrae

37
Q

Inferior Oblique of the Head (Obliquus Capitis Inferior)

Insertion

A

-Transverse processes of C1 vertebrae

38
Q

Inferior Oblique of the Head (Obliquus Capitis Inferior)

Innervation

A

-Suboccipital nerve (dorsal ramus of C1)

39
Q

Inferior Oblique of the Head (Obliquus Capitis Inferior)

Action

A

–ipsilat rotation of head & neck

40
Q

Rectus Capatis Posterior Major

Origin

A

-Spinous process of C2 vertebrae

41
Q

Rectus Capatis Posterior Major

Insertion

A

-Lateral part of inferior nuchal line (of occipital

bone)

42
Q

Rectus Capatis Posterior Major

Innervation

A

-Suboccipital nerve (dorsal ramus of C1)

43
Q

Rectus Capatis Posterior Major

Action

A
  • ipsilat rotation of head & neck

- bilat extension of head & neck

44
Q

Rectus Capitis Posterior Minor

Origin

A

-Posterior tubercle of posterior arch of C1

vertebrae

45
Q

Rectus Capitis Posterior Minor

Insertion

A

-Medial part of inferior nuchal line (of occipital

bone)

46
Q

Rectus Capitis Posterior Minor

Innervation

A

-Suboccipital nerve (dorsal ramus of C1)

47
Q

Rectus Capitis Posterior Minor

Action

A
  • ipsilat rotation of head & neck

- bilat extension of head & neck

Gross Anatomy Muscles (12 decks)

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