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Anatomy of Movement > Back muscles > Flashcards

Back muscles Flashcards

(71 cards)

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1
Q

Serratus posterior superior innervation

A

Intercostal nerves 1-3

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2
Q

Splenius capitis insertion

A
  • Lateral mastoid process
  • Occipital bone
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3
Q

Latissimus Dorsi innervation

A

Thoracodorsal nerve (brachial plexus)

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4
Q

Rectus capitis posterior major insertion

A

Occipital bone

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5
Q

What is the action of the Erector Spinae?

A
  • Bilateral contraction: extend the trunk & spine
  • Unilateral contraction: ipsilateral side bending and rotation of the trunk
  • Maintaining the trunk erected
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6
Q

Rectus capitis posterior minor insertion

A

Occipital bone

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7
Q

Which muscles are part of the Transversospinalis?

A
  • Semispinalis
  • Multifidus
  • Rotators
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8
Q

Which ones are the superficial oblique muscles of the back?

A
  • Splenius capitis
  • Spenius cervicis
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9
Q

Serratus posterior inferior innervation

A

Intercostal nerves 9-12

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10
Q

The Levator Scapulae, Rhomboids Minor and Major innervation

A

Dorsal scapular nerve

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11
Q

Rhomboids Minor origin

A

Spinous processes of C7 and T1

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12
Q

The Levator Scapulae origin

A

Transverse processes of C1-C4

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13
Q

Splenius cervicis innervation

A

Posterior rami of the inferior cervical spinal nerves

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14
Q

Rhomboids Major origin

A

Spinous processes of T2-T5

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15
Q

Serratus posterior inferior action

A

Draw lower ribs downward

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16
Q

Latissimus Dorsi origin

A
  • Spinous processes of T7-T12
  • Thoracolumbar fascia
  • Inferior 3-4 ribs
  • Iliac Crest
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17
Q

Obliquus capitis inferior action

A

Rotate the axis, rotate head ipsilaterally

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18
Q

How are the fibers of the splenius capitis oriented?

A

Oblique orientation

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19
Q

Splenius capitis origin

A
  • Lower 1/2 of nuchal ligament
  • Spinous processes of C7 and T3-T4
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20
Q

Transversospinalis innervation

A

Posterior rami of the spinal nerves

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21
Q

Rectus capitis posterior major action

A

Extend the head, rotate the head ipsilaterally

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22
Q

Obliquus capitis superior action

A

Extend and tilt head ipsilaterally

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23
Q

Erector Spinae innervation

A

Posterior rami of the cervical and thoracic spinal nerves

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24
Q

Rhomboids Minor insertion

A

Medial border of the scapula

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25
Serratus posterior superior origin
- Lower part of the nuchal ligament - Spinous processes of C7-T3
26
The Levator Scapulae insertion
Superior angle of the scapula
27
Suboccipital muscles innvervation
Posterior rami of the 1st cervical nerve (suboccipital nerve)
28
Erector Spinae origin
- Posterior sacrum - Iliac Crest - Spinous processes of T11 - L5
29
Trapezius action
S: Elevate the scapula M: Retract the scapula I: Depress the scapula Bilateral contraction: extend the neck Unilateral contraction: laterally flex the neck
30
Splenius cervicis insertion
Upper transverse processes of C2-C4
31
Iliocostalis insertion
- Transverse processes of C4-C6 and upper lumbar vertebrae and - Ribs 1-12
32
Serratus posterior superior action
Elevation of the ribs = increasing the size of the thorax
33
Multifidus origin
- Sacrum - Ilium - C4-L5
34
What is the action of the cervical muscles?
Unilateral contraction of both muscles: Ipsilaretal rotation and side bending of the head and cervical vertebral column Bilateral contraction: Head and neck extension
35
Rectus capitis posterior major origin
Spinous process of axis
36
Longissimus insertion
- Lumbar, thoracic and cervical vetebrae - Ribs 2-12 - Mastoid process
37
Splenius cervicis origin
Spinous processes of T3-T6
38
Latissimus Dorsi action
- Add arm - Extend the arm - Internal rotation of the arm
39
Obliquus capitis superior origin
Transverse process of atlas
40
Latissimus Dorsi insertion
- Intertubercular groove of the humerus (bicipital groove)
41
Obliquus capitis inferior origin
Spinous process of axis
42
Obliquus capitis inferior insertion
Transverse process of atlas
43
Serratus posterior superior insertion
Ribs 2-5
44
Splenius capitis innervation
Posterior rami of the middle cervical spinal nerves
45
What is the action of the interspinal muscles?
Extension
46
Semispinalis insertion
Spinous processes of C2-C4
47
Serratus posterior inferior origin
Spinous processes T11-L2
48
What is the action of the Transversospinalis?
- Bilateral contraction: extend the trunk - Unilateral contraction: contralateral side bending and rotation.
49
Which muscles are part of the Erector Spinae?
- Iliocostalis - Longissimus - Spinalis
50
Trapezius innervation
Accesory nerve (Cranial nerve XI)
51
Which muscles are part of the segmental muscles?
Interspinals and intertransversarii
52
Rotators insertion
Spinous processes of 1-2 levels higher
53
Trapezius insertion
- Lateral third of clavicula - Acromion process - Spine of the scapula
54
Trapezius origin
- Proximal aspect of the superior nuchal line - External occipital protuberance (inion) - Nuchal ligament - Spinous processes of C7-T12
55
Semispinalis origin
Transverse processes of C3-T12
56
Serratus posterior inferior insertion
Ribs 9-12
57
Which muscles are part of the deep back muscles?
- Erector Spinae (Iliocostalis, Longissimus, Spinalis) - Transversospinalis (Semispinalis Multifidus, Rotators) - Suboccipital Muscles (Obliquus capitis inferior & superior, Rectus capitis posterior major & minor) - Cervical (Splenius capitis, Splenius cervicis)
58
Rotators origin and insertion
Transverse processes of thoracic vertebrae
59
Rectus capitis posterior minor origin
Posterior tubercle of the atlas
60
Obliquus capitis superior insertion
Occipital bone
61
Multifidus insertion
Spinous processes of vertebrae 2-4 levels higher
62
The Levator Scapulae, Rhomboids minor and major action
Elevate the scapula Retract the scapula Downwardly rotate the scapula
63
Which muscles are part of the intermediate back muscles?
- Serratus posterior superior - Serratus posterior inferior
64
What back muscles are considered extrinsic?
Superficial, and Intermediate Back Muscles
65
What back muscles are considered intrinsic?
Deep Back Muscles
66
Spinalis insertion
Spinous processes of T2-T8 and C2-C5
67
Which muscles are part of the superficial back muscles?
- Trapezius - Latissimus Dorsi - The Levator Scapulae - Rhombois Minor - Rhombois Major
68
Which muscles are part of the Suboccipital?
Obliquus capitis inferior & superior Rectus capitis posterior major & minor
69
Rhomboids Major insertion
Medial border of the scapula
70
Rectus capitis posterior minor action
Extend the head
71
What is the action of the intertransversii muscles?
Unilateral contraction: Ipsilateral side bending.

Anatomy of Movement (2 decks)

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