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Axial skeleton: Anatomy and Biomechanics > Cervical muscles > Flashcards

Cervical muscles Flashcards

1
Q

Anterior scalene

A

O: anterior tubercles of transverse processes of C4-6
I: 1st rib
A: elevation of 1st rib, ipsilateral side bending contralateral rotation
In: C4-6 nerve roots

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2
Q

Sternocleidomastoid

A

O:Tendinous head from sternum; muscular head from medial 1/3 of clavicle
I: Mastoid process of the skull
A: unilateral activation- ipsilateral lateral flexion of the neck and contralateral rotation of the head; bilateral activation- flexion of the head
INN: accessory nerve (CN XI) C2-3 pain and proprioception

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3
Q

Middle scalene

A

O: Transverse process of C2-7
I: 1st rib
A: elevation of 1st rib, ipsilateral side bending, contralateral rotation
INN: Ventral rami of C3-8

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4
Q

Posterior Scalene

A

O: Transverse process of C5-6
I:2nd rib
A: elevation of 2nd rib, ipsilateral side bending, contralateral rotation
INN: Ventral Rami of C3-8

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5
Q

Platysma

A

O: Inferior Mandible
I: fascia of pectorals major and deltoid
A: Draws skin or neck superiorly with clenched jaw, draws corners of mouth inferiorly
IN: cervical branch of fascial nerve

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6
Q

Splenius Capitis

A

O: Lagamentum Nuchae; spinous process of C7-T3/4
I: Mastoid process and occipital bone
A: Unilateral action- ipsilateral rotation of head and neck; bilateral action- extension of head and neck
IN: dorsal rami of middle cervical spinal nerves

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7
Q

Splenius Cervicis

A

O: spinous processes of T3-6
I: transverse processes of upper 2-4 cervical vertebrae
A: Unilateral action- Ipsilateral rotation of head and neck; bilateral action- extension of head and neck
IN: Dorsal rami of lower cervical spinal nerves

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8
Q

Serratus posterior superior

A

O: Ligamentum nuchae; spinous process of C7-T2/3
I: upper ribs
A: elevation of ribs
IN: ventral rami of upper 3-4 thoracic spinal nerves

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9
Q

Serratus posterior inferior

A

O: spinous process of T11-L2
I: lower 3-4 ribs
A: pulls lower ribs inferiorly
IN: Ventral rami of lower thoraces (9th-12th) spinal nerves

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10
Q

Iliocostalis Lumborum

A

O: iliac crest; sacrum
I: lower boarders of lower 6-7 ribs
A: Bilateral- extension of spinal column; Unilateral- ipsilateral side bending
IN: dorsal rami of spinal nerves in area of muscles

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11
Q

Iliocostalis Thoracics

A

O: upper boarders of lower 6-7 ribs
I: Lower boarders of upper 6 ribs
A: Bilateral- extension of spinal column; Unilateral- ipsilateral side bending
IN: dorsal rami of spinal nerves in area of muscles

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12
Q

Iliocostalis Cervicis

A

O: angles of upper 6 ribs
I: transverse processes of C4-6
A: Bilateral- extension of spinal column; Unilateral- ipsilateral side bending
IN: dorsal rami of spinal nerves in area of muscles

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13
Q

Longissimus thoracis

A

O: intermediate part of common tendon
I: Lower 9-10 ribs and adjacent transverse processes of vertebrae
A: Bilateral- extension of spinal column; Unilateral- ipsilateral side bending
IN: dorsal rami of spinal nerves in area of muscles

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14
Q

Longissimus cervicis

A

O: transverse processes of upper 4-6 thoracic vertebrae
I: transverse processes of C2-6 vertebrae
A: Bilateral- extension of spinal column; Unilateral- ipsilateral side bending
IN: dorsal rami of spinal nerves in area of muscles

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15
Q

Longissimus capitis

A

O: tendons of origin of longissimus cervicis; articular processes of C4-7
I: Mastoid process
A: Bilateral- extension of spinal column; Unilateral- ipsilateral side bending
IN: dorsal rami of spinal nerves in area of muscles

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16
Q

Spinalis Throacis

A

O: Spinous processes of T11-L2
I: Spinous processes of upper thoraces vertebrae (4-8)
A: Bilateral- extension of spinal column; Unilateral- ipsilateral side bending
IN: dorsal rami of spinal nerves in area of muscles

17
Q

Spinalis Cervicis

A

O: ligamentum nuchae; spinous process of C7-T2
I: Spinous processes of C2, and possibly C3/4
A: Bilateral- extension of spinal column; Unilateral- ipsilateral side bending
IN: dorsal rami of spinal nerves in area of muscles

18
Q

Semispinalis Thoracis

A

O: transverse processes of T7-12
I: spinous processes of C6-T4
A: extension of spinal column
IN: Dorsal rami of cervical and thoracic spinal nerves

19
Q

Semispinalis cervicis

A

O: transverse processes of T1-6
I: spinous processes of C2-5
A: extension of spinal column
IN: Dorsal rami of cervical and thoracic spinal nerves

20
Q

Semispinalis Capitis includes spinals capitis

A

O: transverse process of T1-6 and articular process of C5-7
I: occipital bone between superior and interior nuchal lines
A: extension of head
IN: Dorsal rami of cervical and thoracic spinal nerves

21
Q

Multifidus

A

O: sacrum and transverse processes of lumbar through cervical vertebrae
I: spinous processes of lumbar through C2; fascicles span 2-4 segment of the column
A: extension, lateral flexion, contralateral rotation of vertebral column
IN: Dorsal rami of spinal nerves

22
Q

Rotators

A

O: sacrum and transverse processes of lumbar through lower cervical vertebrae
I: spinous processes of lumbar through C2; Fascicles span 1-2 segments of the column
A: extension, contralateral rotation of vertebral column
IN: Dorsal rami of spinal nerves

23
Q

Interspinalis

A

O: spinous processes of vertebrae (absent in much of thoracic region)
I: spinous processes of vertebrae (span between adjacent vertebrae)
A: extension of vertebral column
IN: Dorsal rami of spinal nerves

24
Q

Intertransversarii

A

O: transverse processes of vertebrae (absent in much of thoracic region)
I: Transverse processes of vertebrae (Span between adjacent vertebrae)
A: lateral flexion of vertebral column
IN: Dorsal rami of spinal nerves

25
Q

Obliquus Capitis Inferior

A

O: C2 spinous process
I: C1 transverse process
A: ipsilateral rotation of atlas
IN: dorsal rami of C1

26
Q

Obliquus capitis superior

A

O: C1 transverse process
I: occipital bone
A: extension and lateral flexion of the head
IN: dorsal rami of C1

27
Q

Rectus capitis posterior major

A

O: C2 spinous process
I: occipital bone
A: extension and ipsilateral rotation of the head
IN: dorsal rami of C1

28
Q

Rectus capitis posterior minor

A

O: posterior tubercle of C2
I: occipital bone
A: extension of the head
IN: dorsal rami of C1

29
Q

Longus Colli

A

O: bodies of C5-T3; transverse processes of C3-5
I: anterior surface of C1; Bodies of C2-4; transverse processes of C5-6
A: flexion and lateral flexion of the neck
IN: ventral rami of C2-6

30
Q

Longus Capitis

A

O: transverse processes of C3-6
I: occipital bone
A: flexion of the head and upper cervical region
IN: ventral rami of C1-3

31
Q

Rectus Capitis Anterior

A

O: lateral mass of atlas
I: occipital bone
A: stabilization of AO joint; flexion of head
IN: ventral rami of C1-2

32
Q

Rectus Capitis Lateralis

A

O: transverse process of C1
I: occipital bone
A: stabilization of AO joint; Lateral flexion of head
IN: ventral rami of C1-2

Axial skeleton: Anatomy and Biomechanics (7 decks)

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