Back muscles Flashcards

1
Q

Trapezius Proximal Attachments

A

Superior nuchal line, external occipital protruberance, nuchal ligament, spinous processes C7-T12

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2
Q

Trapezius Distal Attachments

A

Clavicle, acromion, scapular spine

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3
Q

Trapezius Actions

A

Elevation, retraction, depression of scapula; rotation of glenoid fossa superiorly

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4
Q

Trapezius Innervation

A

Cranial nerve XI (spinal accessory nerve)

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5
Q

Trapezius Blood Supply

A

Transverse Cervical Artery

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6
Q

Latissimus Dorsi Proximal Attachments

A

Spinous processes T7-12, thoracolumbar fascia, iliac crest

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7
Q

Latissimus Dorsi Distal Attachments

A

Floor of intertubercular sulcus of humerus

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8
Q

Latissimus Dorsi Actions

A

Extension, adduction, medial/internal rotation of humerus; lifts body toward arm in climbing

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9
Q

Latissimus Dorsi Innervation

A

thoracodorsal nerve

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10
Q

Latissimus Dorsi Blood Supply

A

thoracodorsal artery

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11
Q

Levator Scapulae Proximal Attachments

A

Transverse processes, C1-4

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12
Q

Levator Scapulae Distal Attachments

A

Superior angle of scapula

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13
Q

Levator Scapulae Innervation

A

Dorsal scapular nerve (C5)

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14
Q

Levator Scapulae Blood Supply

A

Dorsal scapular artery

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15
Q

Rhomboid Major Proximal Attachments

A

spinous processes of T2-T5

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16
Q

Rhomboid Major Distal Attachments

A

Medial border of scapula , below scapular spine

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17
Q

Rhomboid minor proximal attachments

A

nuchal ligament, spinous processes of C7, T1

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18
Q

Rhomboid minor distal attachments

A

Medial border of scapula, superior to scapular spine

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19
Q

Serratus posterior superior

A

Elevation of ribs

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20
Q

Serratus posterior inferior

A

Depression of ribs

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21
Q

Splenius capitus origin

A

Lower cervical and upper thoracic spinous processes

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22
Q

Splenius Cervicis origin

A

Lower cervical and upper thoracic spinous processes

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23
Q

Capitus insertion

A

Mastoid process, superior nuchal line

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24
Q

Cervicis insertion

A

Upper cervical transverse processes

25
Q

Splenius capitus actions

A

Unilateral contraction yields lateral flexion of neck and rotation of head to side of contraction Bilateral contraction yields head and neck extension

26
Q

Erector spinae origin

A

Iliac crest, sacrum

27
Q

Illiocostalis Insertion

A

angles of lower ribs, cervical transverse processes

28
Q

Longissimus insertion

A

angles of ribs, cervical/thoracic transverse processes, mastoid process

29
Q

Spinalis Insertion

A

spinous processes

30
Q

Erector Spinae action

A

Unilateral contraction yields lateral flexion Bilateral contraction yields extension

31
Q

Semispinalis action

A

4-6 … Extension of vertebral column (semispinalis cervicis) and head (semispinalis capitus)

32
Q

Multifidus action

A

2-4 … Unilateral contraction rotates to contralateral side; stabilizes vertebrae

33
Q

Rotator action

A

1-2 … Extension and rotation of vertebral column

34
Q
A
35
Q
A
36
Q
A

Atlanto-occipital joints

37
Q
A

Atlanto-axial joints

38
Q
A

Anterior longitudinal ligament

39
Q
A

Posterior Longitudinal ligament

40
Q
A

Ligamentum flavum

41
Q
A

Purple - Intersinous ligaments

Yellow- Suprasinous ligaments (ligamentum nuchaeat cervical levels)

42
Q
A

Trapezius

43
Q
A

Latissimus Dorsi

44
Q
A

Levator Scapulae

45
Q
A

Purple - Rhomboid major

Black - minor

46
Q
A

Purple - Serratus posterior superior

Green - Serratus posterior inferior

47
Q
A

Triangle of auscultation

Lumbar triangle of Petit

48
Q
A

Blue - Nuchal fascia/ligament

Green- Thoracolumbar fascia

49
Q
A

Red - splenius capitus

Purple- Splenius Cervicis

50
Q
A

Erector spinae

51
Q
A
52
Q
A
53
Q
A

Semispinalis capitus (with greater occipital nerves)

54
Q
A

Seminispinalis cervicis

55
Q
A

Multifidis– lumbar

56
Q
A

Rotators – thoracic

57
Q
A
58
Q
A