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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
Transversospinalis Multifidus | Origin
- 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
Transversospinalis Multifidus | Insertion
-Thickest in lumbar region -fibers pass obliquely superomedially to entire length of spinous processes, spanning 2-4 segments superior to origin
27
Transversospinalis Multifidus | Innervation
-Dorsal rami of spinal nerves
28
Transversospinalis Multifidus | Action
Stabilizes vertebrae during local movements of | vertebral column
29
Transversospinalis Rotatores | Origin
- Arise from transverse processes of vertebrae | - best developed in thoracic region
30
Transversospinalis Rotatores | Insertion
-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
Transversospinalis Rotatores | Innervation
-Dorsal rami of spinal nerves
32
Transversospinalis Rotatores | Action
- Stabilizes vertebrae during local movements of vertebral column - Assists with and rotatory movements of vertebral column
32
Superior Oblique of the Head (Obliquus Capitis Superior) | Origio
-Transverse processes of C1 | vertebrae
33
Superior Oblique of the Head (Obliquus Capitis Superior) | Insertion
-Occipital bone between superior and inferior | nuchal lines
34
Superior Oblique of the Head (Obliquus Capitis Superior) | Innervation
-Suboccipital nerve (dorsal ramus of C1)
35
Superior Oblique of the Head (Obliquus Capitis Superior) | Action
- ipsilat lateral flexion of head & neck | - bilat extension of head & neck
36
Inferior Oblique of the Head (Obliquus Capitis Inferior) | Origin
-Spinous process of C2 vertebrae
37
Inferior Oblique of the Head (Obliquus Capitis Inferior) | Insertion
-Transverse processes of C1 vertebrae
38
Inferior Oblique of the Head (Obliquus Capitis Inferior) | Innervation
-Suboccipital nerve (dorsal ramus of C1)
39
Inferior Oblique of the Head (Obliquus Capitis Inferior) | Action
--ipsilat rotation of head & neck
40
Rectus Capatis Posterior Major | Origin
-Spinous process of C2 vertebrae
41
Rectus Capatis Posterior Major | Insertion
-Lateral part of inferior nuchal line (of occipital | bone)
42
Rectus Capatis Posterior Major | Innervation
-Suboccipital nerve (dorsal ramus of C1)
43
Rectus Capatis Posterior Major | Action
- ipsilat rotation of head & neck | - bilat extension of head & neck
44
Rectus Capitis Posterior Minor | Origin
-Posterior tubercle of posterior arch of C1 | vertebrae
45
Rectus Capitis Posterior Minor | Insertion
-Medial part of inferior nuchal line (of occipital | bone)
46
Rectus Capitis Posterior Minor | Innervation
-Suboccipital nerve (dorsal ramus of C1)
47
Rectus Capitis Posterior Minor | Action
- ipsilat rotation of head & neck | - bilat extension of head & neck

Gross Anatomy Muscles (12 decks)

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