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Deep back Muscles Flashcards

1
Q

Splenius Capitis Origin

A

Spinous process of C7 (or T1)-T4

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2
Q

Splenius Capitis Insertion

A

Mastoid Process and lateral superior nuchal line

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3
Q

Splenius Cervices Origin

A

Spinous process of T5-T7

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4
Q

Splenius Cervices insertion

A

Transverse Process of C1-C4

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5
Q

Splenius Cervices Innervations

A

Dorsal Primary Rami

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6
Q

Splenius Cervices Action

A

Bilaterally- They extend the neck

Unilaterally- Rotate the head to the same side

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7
Q

Erector Spinae Muscle Groups

A

Iliocostalis (most lateral)
Longissimus (middle portion and the longest)
Spinalis (Most medial pf the erectors)

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8
Q

Innervation for the Erector Spinae Muscle Groups

A

Dorsal primary Rami

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9
Q

Bilateral action of the Erector Spinae Muscle Groups

A
  • Extension of the Vertebral Column
  • Maintenance of the erect posture
  • Stabilization of the vertebral column during flexion, acting in contrast to abdominal muscles and action of gravity
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10
Q

Unilateral action of the Erector Spinae Muscle Groups

A
  • Lateral bend to the same side
  • Rotation to the same side
  • Opposite muscle contract eccentrically for stabilization
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11
Q

Iliocostalis Lumborum Origin

A

Ilium

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12
Q

Iliocostalis Lumborum Insertion

A

Lower 6 ribs

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13
Q

Iliocostalis Thoracis Origin

A

Lower 6 ribs

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14
Q

Iliocostalis Thoracis Insertion

A

Upper 5 ribs

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15
Q

Iliocostalis Cervicis Origin

A

Angles of ribs 1-6

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16
Q

Iliocostalis Cervicis Insertion

A

Transverse Processes of C3-C7

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17
Q

Longissimus Thoracis Origin

A

Ilium

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18
Q

Longissimus Thoracis Insertion

A

Lower 9 Ribs

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19
Q

Longissimus Cervices Origin

A

Transverse process of the T1-T4

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20
Q

Longissimus Cervices Insertion

A

Transverse processes of C3-C7

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21
Q

Longissimus Capitis Origin

A

Articular Processes of C3-C7

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22
Q

Longissimus Capitis Insertion

A

Posterior aspect of the mastoid process of the temporal bone

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23
Q

Spinalis Thoracis Origin

A

Spinous Process of T11/12-L2

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24
Q

Spinalis Thoracis Insertion

A

Spinous Process of T1-T4

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25
Spinalis Cervicis Origin
Spinous Process of C7-T2
26
Spinalis Cervicis Insertion
Spinous Process of C2-C3
27
Spinalis Capitis Origin
Fused to semispinalis capitis, Articular Processes of C4-C7, and Transverse Processes of T1-T7
28
Spinalis Capitis Insertion
Between the superior and inferior nuchal lines of the occipital bone
29
Transversospinal Muscle Groups
- Semispinalis - Multifidus - Rotators
30
Semispinalis Thoracis Origin
Transverse process of T7-T12
31
Semispinalis Thoracis Insertion
Spinous process of T1-T6 *not seen clearly
32
Semispinalis Cervicis Origin
Transverse process of T1-T6
33
Semispinalis Cervicis Insertion
Spinous process of C3-T6 (spenius muscle covers this)
34
Semispinalis Capitis Origin
Transverse process of T1-T6 and Articular processes of C5-C7
35
Semispinalis Capitis Insertion
Between superior and Inferior nuchal lines of the occipital bones
36
Multifidus
Long single muscle in the cervical, thoracic, and lumbar regions
37
Multifidus Origin
Sacrum
38
Multifidus Insertion
Lower cervical vertebrae (covers rotators)
39
Short rotators Origin
Transverse Processes of one vertebra
40
Short rotators insertion
Base of the spinous process of the vertebra immediately above
41
Long Rotators Origins
Transverse Processes of one vertebra
42
Long Rotators Insertion
Base of Spinous Process of the two above
43
Other segmented muscles
Interspinalis (well developed in cervical, not thoracic) Intertransversarii (probably not in thoracic region) Sub-Occipital Muscles
44
Interspinalis Origin
Spinous Process
45
Interspinalis Insertion
Spinous Process of immediately above
46
Interspinalis Action
Extension of Vertebrae segments
47
Interspinalis Innervation
Dorsal Primary Rami
48
Intertransversarii Origin
One Transverse Process
49
Intertransversarii Insertion
Transverse immediately above
50
Intertransversarii innervation
Dorsal Primary Rami
51
Intertransversarii action
Lateral Flexion of the Vertebral Column
52
Sub occipital Muscles (SOM)
1. Rectus Capitis Posterior Major 2. Rectus Capitis Posterior Minor 3. Obliquus Capitis Superior 4. Obliquus Capitis Inferior
53
Sub occipital Muscles Action
- Movement of the head and the first 2 cervical vertebrae - Looking upward left or right - Combined bilateral action Extension of head back - Combined unilateral action is rotation of head to that side
54
Sub occipital Muscles innervation
Dorsal Primary Rami
55
(SOM) Rectus Capitis Posterior Major Origin
Spinous Process of C2
56
(SOM) Rectus Capitis Posterior Major Insertion
Lateral Inferior nuchal line
57
(SOM) Rectus Capitis Posterior Minor Origin
Spinous Process of C1
58
(SOM) Rectus Capitis Posterior Minor Insertion
Medial inferior nuchal line
59
(SOM) Obliquus Capitis Superior Origin
Transverse Process of C1
60
(SOM) Obliquus Capitis Superior Insertion
On occipital bone just inferior to the semispinalis capitis
61
(SOM) Obliquus Capitis Inferior Origin
Spinous Process of C2
62
(SOM) Obliquus Capitis Inferior Insertion
Transverse Process of C1
63
Sub-Occipital Triangle
- Formed by the sub-occipital muscles - Sub occipital nerve, artery, vein all pass through - Vertebral artery passes deep to it catting blood to brain - Greater occipital nerve passes over Obliquus Capitis Inferior and pierces semispinalis Capitis

Anatomy (11 decks)

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