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My cards > FOM 25 Deep Back Muscles > Flashcards

FOM 25 Deep Back Muscles Flashcards

0
Q

Splenius capitis and cervicis mm. INSERTION

A

mastoid process and superior nuchal line (capitis portion) C1-C4 transverse processes (cervicis portion)

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1
Q

Splenus capitus and cervicis mm. ORIGIN

A

Ligamentum nuchae, T1-T4 spinous process

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2
Q

Splenius capitis and cervicis mm. ACTIONS

A

Unilateral: lateral flexion, and ipsilateral rotation of head/neck
Bilateral: extension of head/neck

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3
Q

Erector spinae group ORIGIN and columns

A

Common tendon from posterior iliac crest, dorsal sacrum, and lumbar spinous processes; addition slips originate along the axial skeleton

  • Intercostalis m.
  • Longissimus m.
  • Spinalis m.
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4
Q

Iliocostalis m. INSERTION

A

angles of the ribs (lumborum and thoracis) and cervical transverse processes

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5
Q

Longissimus m. INSERTION

A

Thoracic transverse processes and adjacent ribs (thoracis), cervical transverse processes (cervicis), mastoid process (capitis)

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6
Q

Spinalis m. INSERTION

A

Upper thoracic spinous processes (thoracis); cervical spinous processes and ligamentum nuchae (cervicis); occipital bone between nuchal lines (capitis, usually infused with semispinalis capitis

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7
Q

Erector spinae mg. ACTIONS

A

unilateral: lateral flexion and ipsilateral rotation of the trunk and head/neck
bilateral: extension of trunk and head/neck

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8
Q

Transversospinalis g. ORIGIN

A

Dorsal sacrum and posterior iliac crest, lumbar mamillary processes, cervical and thoracic transverse processes

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9
Q

Transversospinalis g. INSERTION

A

spinous processes and occipital bone

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10
Q

Semispinalis m.

A

Spans 5-6 segments, best defined in the cervical region

*Most superficial group of the transversospinalis mm.

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11
Q

Semispinalis cervicis

A

from the thoracic transverse processes to upper cervical spinous processes, up to C2 (axis)
*Superficial of the semispinalis mm. (superficial to semispinalis capitis)

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12
Q

Semispinalis capitis

A

From cervical transverse processes to occipital bone; major extensor of the head.
*Deep to the semispinalis cervicis

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13
Q

Multifidus m.

A

3-4 segments, best defined in lumbar region

*intermediate of the transversospinalis g. (deep to semispinalis m., superficial to Rotator m.)

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14
Q

Multifidus lumborum

A

Dorsal sacrum and lumbar mamillary processes to lumbar and lower thoracic spinous processes

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15
Q

Rotator m.

A

1-2 segments, best defined in thoracic region

*Deepest transversospinalis g. m.

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16
Q

Rotator longus

A

Spans 2 segments

17
Q

Rotator brevis

A

spans 1 segment

18
Q

Transversospinalis g. ACTION

A

Unilateral: lateral flexion, contralateral rotation of trunk, head/neck
Bilateral: extension of trunk head/neck

19
Q

Levator costae m. ORIGIN

A

Transverse processes of thoracic vertebrae

20
Q

Levator costae m. INSERTION

A

Superior borders of ribs (1 or 2 segments inferior)

21
Q

Levator costae m. ACTIONS

A

Elevate ribs, assist in lateral flexion

22
Q

Intersegemental muscles

A

Interspinalis m., Intertransverse m.

- High proportion of muscle spindles, primary function is proprioception

23
Q

Interspinalis m.

A

Between adjacent spinous processes in the cervical and lumbar regions

24
Q

Intertransverse m.

A

Between adjacent transverse processes in the cervical and lumbar regions

25
Q

Thoracolumbar fascia

A

Posterior, middle, and anterior layer

*investing fascia of the intrinsic back muscles in the thoracic and lumbar regions

26
Q

Posterior thoracolumbar fascia

A

Attached to the spinous processes. Thin in the thoracic region, but forms a dense aponeurosis in the lumbar region

27
Q

Middle thoracolumbar fascia

A

Attaches to lumbar transverse processes, iliac crest, and rib 12; continues laterally with the aponeurosis of the transverse abdominis m.

28
Q

Anterior thoracolumbar fascia

A

The anterior fascia of quadratus lumborum m.

29
Q

Suboccipital mm.

A

Contribute to the deepest layer of dorsal cervical muscles
Innervated: dorsal ramus of C1, the suboccipital n.
*Rectus capitis posterior m., Rectus capitis posterior minor m., Obliquus capitis posterior m., Obliquus capitis inferior m.

30
Q

Rectus capitis posterior major m.

A

ORIGIN: Spinous process of C2 (axis)
INSERTION: Inferior nuchal line
ACTION: bilateral extension and ipsilateral, unilateral rotation of head

31
Q

Rectus capitis posterior minor m.

A

ORIGIN: Posterior tubercle of C1 (atlas)
INSERTION: Inferior nuchal line, medial to rectus capitis posterior major m.
ACTIONS: Extension of head (bilateral)

32
Q

Obliquus capitis superior m.

A

ORIGIN: Transverse process of C1 (atlas)
INSERTION: Occiput between nuchal lines
ACTIONS: Extension of head (bilateral), lateral flexion of head (unilateral)

33
Q

Obliquus capitis inferior m.

A

ORIGIN: Spinous process of C2 (axis)
INSERTION: Transverse process of C1 (atlas)
ACTIONS: Ipsilateral rotation of head (unilateral)

34
Q

Suboccipital triangle

A 
Rectus capitis posterior major m.
Obliquus capitis superior m.
Obliquus capitis inferior m.
Floor: posterior atlanto-occipital membrane and posterior arch of atlas
Roof: Semispinalis capitis m.
Contains: Vertebral a., suboccipital n.
34
Q

Suboccipital triangle

A 
Rectus capitis posterior major m.
Obliquus capitis superior m.
Obliquus capitis inferior m.
Floor: posterior atlanto-occipital membrane and posterior arch of atlas
Roof: Semispinalis capitis m.
Contains: Vertebral a., suboccipital n.
35
Q

Vertebral a.

A

Exits from transverse foramen of C1.
Curves medially around posterior aspect of lateral mass of atlas
Pierces posterior atlanto-occipital membrane to enter foramen magnum

35
Q

Vertebral a.

A

Exits from transverse foramen of C1.
Curves medially around posterior aspect of lateral mass of atlas
Pierces posterior atlanto-occipital membrane to enter foramen magnum

36
Q

Suboccipital n.

A

Emerges from center of suboccipital triangle
Gives muscular branches to suboccipital muscles
The suboccipital n. lacks sensory fibers and has no cutaneous distibution

36
Q

Suboccipital n.

A

Emerges from center of suboccipital triangle
Gives muscular branches to suboccipital muscles
The suboccipital n. lacks sensory fibers and has no cutaneous distibution

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