Back Muscles Flashcards

1
Q

Trapezius Origin

A

Superior nuchal line
Ligamen nuchae
C7-T12 Spinous Processes

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2
Q

Trapezius Insertion

A

Spine of scapula
Acromion
Lateral 1/3 of clavicle

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3
Q

Trapezius Innervation

A

Accessory Nerve
C3
C4

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4
Q

Trapezius Action

A
At scapula
Adduct
Elevates
Depresses
Rotates
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5
Q

Levator Scapulae Origin

A

Transverse process of C1-C4

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6
Q

Levator Scapulae Insertion

A

Medial border of scapula

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7
Q

Levator Scapulae Innervation

A

Dorsal scapular nerve
C3
C4

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8
Q

Levator Scapulae Action

A

Elevates scapula

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9
Q

Rhomboid Minor Origin

A

Spines of C7-T1

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10
Q

Rhomboid Minor Insertion

A

Root of spine scapula

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11
Q

Rhomboid Minor Nerve

A

Dorsal scapular nerve

C5

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12
Q

Rhomboid Minor Action

A

Adducts scapula

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13
Q

Rhomboid Major Origin

A

Spines of T2-T5

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14
Q

Rhomboid Major Insertion

A

Medial border of scapula

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15
Q

Rhomboid Major Nerve

A

Dorsal scapular nerve

C5

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16
Q

Rhomboid Major Action

A

Adducts scapula

17
Q

Latissimus Dorsi Origin

A

Spines of T5-T12
Thoracolumbar fascia
Iliac crest
Ribs 9-12

18
Q

Latissimus Dorsi Insertion

A

Floor of bicipital groove of humerus

19
Q

Latissimus Dorsi Innervation

A

Thoracodorsal nerve

20
Q

Latissimus Dorsi Action

A

Adducts, extends and rotates arm medially

21
Q

Serratus Anterior Origin

A

Outer surface of ribs 1-8

22
Q

Serratus Anterior Insertion

A

Medial border of scapula

23
Q

Serratus Anterior Innervation

A

Long thoracic nerve

24
Q

Serratus Anterior Action

A

Abducts and protracts scapula

25
Q

ILS Origin

A

Posterior, lateral surface of sacrum and iliac crest and supraspinous ligament
Ribs
Transverse and spinous processes

26
Q

Iliocostalis Insertion

A

Ribs and cervical transverse processes

27
Q

Longissimus Insertion

A

Ribs
Transverse processes of cervical/thoracic vertebrae
Mastoid process

28
Q

Spinalis Insertion

A

Spinous processes of vertebrae

29
Q

ILS Innervation

A

Posterior rami of spinal nerves

30
Q

ILS Action

A

Extension of head, cervical and thoracic region bilaterally
Unilateral lateral flexion
Aids in twisting

31
Q

Semispinalis Origin

A

Transverse processes of C4-T12

32
Q

Semispinalis Insertion

A

Spinous process 4-6 segments above origin

33
Q

Multifidus Origin

A

Sacrum and ilium inferiorly

Transverse processes cranially

34
Q

Multifidus Insertion

A

Spinous processes 2-4 segments superior to origin

35
Q

Rotatores Origin

A

Transverse processes

36
Q

Rotatores Insertion

A

Spinous process 1-2 segments superior to origin

37
Q

Semispinalus, Multifidus and Rotatores Innervation

A

Posterior rami of spinal nerves

38
Q

Semispinalus, Multifidus and Rotatores Action

A

Extension
Lateral flexion
Rotation
Postural