Muscles Of The Back

Front 1

Trapezius Attachment

Back 1

"Proximal- external occipital protuberance, nuchal ligament, spinous processes of vertabrae C7 and T1 to T12. Superior- lateral 1/3 of clavicle.Middle- acromion and crest of spine of scapula. Lower- Medial protion of crest of spine of scapula"

Front 2

Trapezius Innervation

Back 2

Motor- Accessory Nerve (CN XI). Sensory- (C3 and C4) Nerves

Front 3

Trapezius Action

Back 3

Upper- Elevates Scapula. Middle- retracts scapula. Lower- Depresses Scapula Upper and lower parts together rotate scapula

Front 4

Latissimus Dorsi Attachment

Back 4

"Proximal- spines of vertebrae T7-T12, Thoracolumbar Fascia, Iliac Crest. Ribs 9-12, lateral to their angle. Distal- bicipital groove on anterior side of humerus."

Front 5

Latissimus Dorsi Innervation

Back 5

"Thoracodorsal Nerves (C6,C7,C8)"

Front 6

Latissimus Dorsi Action

Back 6

"Extends, Adducts, and Medially rotates humerus at the shoulder. Raises body toward arms when climbing."

Front 7

Levator Scapulae Attachment

Back 7

Proximal- transverse process of C1-C4. Distal- superior angle of the scapula.

Front 8

Levator Scapulae Innervation

Back 8

"Dorsal Scapular Nerve (C5), and Cervical Nerves (C3 and C4)."

Front 9

Levator Scapulae Action

Back 9

Elevates the Scapula and tilts the Glenoid Cavity inferiorly by rotating the scapula

Front 10

Rhomboid Major Attachment

Back 10

Proximal- spinous processes of T2-T5 Distal- Medial border of the scapula inferior to the spine.

Front 11

Rhomboid Major Innervation

Back 11

Dorsal Scapular Nerve (C5)

Front 12

Rhomboid Major Action

Back 12

"Retracts Scapula, and rotates it to depress the Glenoid Cavity. Fixes Scapula to thoracic wall."

Front 13

Rhomboid Minor Attach

Back 13

Proximal- Nuchal Ligament and spinous processes of vertebrae C7 and T1. Distal- medial border of the scapula at root of spine.

Front 14

Rhomboid Minor Innervation

Back 14

Dorsal Scapular Nerve (C5)

Front 15

Rhomboid Minor Action

Back 15

"Retracts Scapula, and rotates it to depress the Glenoid Cavity. Fixes Scapula to thoracic wall."

Front 16

List the Superficial muscles of the Back

Back 16

"Trapezius, Latissimus Dorsi, Levator Scapulae, Rhomboid Major, Rhomboid Minor"

Front 17

List the Intermediate Muscles of the Back

Back 17

"Serratus Posterior Superior, Serratus posterior Inferior"

Front 18

Serratus Posterior Superior Attach

Back 18

Proximal- Nuchal Ligament and spinous processes of vertebrae C7 to T3. Distal- Superior borders of ribs 2 to 4 lateral to their angles.

Front 19

Serratus Posterior Superior Innervation

Back 19

Intercostal Nerves (2-5)

Front 20

Serratus Posterior Superior Action

Back 20

Proprioreception and elevates ribs during respiration.

Front 21

Serratus Posterior Inferior Attach

Back 21

"Proximal- Spinous processes of vertebrae T11-L2. Distal- Inferior borders of ribs 8-12, lateral to their angles."

Front 22

Serratus Posterior Inferior Innervation

Back 22

Thoracic Spinal Nerves (T9-T12)

Front 23

Serratus Posterior Inferior Action

Back 23

"Proprioreception and depresses ribs during respiration, resisting pull of Diaphram."

Front 24

What are the two Splenius muscles?

Back 24

"Splenius Capitus, Spenius Cervicis"

Front 25

Splenius Capitus Attach

Back 25

Proximal- Nuchal Ligament and spinous processes of vertebrae C7-T4. Distal- Mastoid Process and superior Nuchal Line.

Front 26

Splenius Capitus Innervation

Back 26

Dorsal Rami of C3 and C4

Front 27

Splenius Capitus Action

Back 27

Head Extension. Flexion and Rotation to the same side.

Front 28

Splenius Cervicis Attach

Back 28

Proximal- Nuchal Ligament and spinous processes of vertebrae T3 to T6. Distal- The transverse process of vertebrae C1-C4.

Front 29

Splenius Cervicis Innervation

Back 29

Dorsal Rami of C3 and C4

Front 30

Splenius Cervicis Action

Back 30

Head Extension. Flexion and Rotation to the same side.

Front 31

What is the Erector Spinae-Sacrospinalis composed of?

Back 31

"Composed of three columns of muscle: Spinalis, Longissimus, and Illiocostalis, medial to lateral respectively."

Front 32

Erector Spinae-Spinalis Thoracis Attach

Back 32

Superior- Spinous Processes of T1-T8. Inferior- Spinous Processes of T11-L2.

Front 33

Erector Spinae-Spinalis Thoracis Innervation

Back 33

Dorsal Rami at corresponding levels.

Front 34

Erector Spinae-Spinalis Thoracis Action

Back 34

Extension of the vertebral column.

Front 35

Erector Spinae-Spinalis Cervicis Attach

Back 35

"Superior- Spinous Process of Axis (C2). Inferior- Nuchal Ligament, and spinous process of C7."

Front 36

Erector Spinae-Spinalis Cervicis Innervation

Back 36

Dorsal Rami at corresponding levels.

Front 37

Erector Spinae-Spinalis Cervicis Action

Back 37

Extension of the vertebral column.

Front 38

Erector Spinae-Spinalis Capitis Attach

Back 38

Medial part of semispinalis capitus

Front 39

Erector Spinae-Spinalis Capitis Innervation

Back 39

Dorsal Rami at corresponding levels.

Front 40

Erector Spinae-Spinalis Capitis Action

Back 40

Extends and Rotates the head.

Front 41

Erector Spinae-Longissimus Thoracis Attach

Back 41

Superior- Transverse processes of all thoracic vertebrae. Inferior- Medial and Lateral Sacral Crests. Medial part of Iliac Crest. Spinous processes of C11-L5

Front 42

Erector Spinae-Longissimus Thoracis Innervation

Back 42

Dorsal Rami at corresponding levels.

Front 43

Erector Spinae-Longissimus Thoracis Action

Back 43

"Extension, lateral flexion of the vertebral column."

Front 44

Erector Spinae-Longissimus Cervicis Attach

Back 44

Superior- Transverse processes of C2-C6. Inferior- Transverse Processes of T1-T5.

Front 45

Erector Spinae-Longissimus Cervicis Innervation

Back 45

Dorsal Rami at corresponding levels.

Front 46

Erector Spinae-Longissimus Cervicis Action

Back 46

"Extension, lateral flexion of the vertebral column."

Front 47

Erector Spinae-Longissimus Capitus Attach

Back 47

Superior- Posterior part of Mastoid Process Inferior- Transverse processes of C5-T5

Front 48

Erector Spinae-Longissimus Capitus Innervation

Back 48

Dorsal Rami at corresponding levels.

Front 49

Erector Spinae-Longissimus Capitus Action

Back 49

Extends and Rotates the head.

Front 50

Erector Spinae-Illiocostalis Lumborum Attach

Back 50

"Superior- Ribs 7-12 Inferior-Medial and Lateral Sacral Crests, and medial part of Iliac crests."

Front 51

Erector Spinae-Illiocostalis Lumborum Innervation

Back 51

Dorsal Rami at corresponding levels.

Front 52

Erector Spinae-Illiocostalis Lumborum Action

Back 52

"Extension, lateral flexion of the vertebral column."

Front 53

Erector Spinae-Illiocostalis Thoracis Attach

Back 53

"Superior- Ribs 1-6, and transverse process of C7. Inferior- angles of ribs 7-12 medial to illiocostalis lumborum"

Front 54

Erector Spinae-Illiocostalis Thoracis Innervation

Back 54

Dorsal Rami at corresponding levels.

Front 55

Erector Spinae-Illiocostalis Thoracis Action

Back 55

"Extension, lateral flexion of the vertebral column."

Front 56

Erector Spinae-Illiocostalis Cervicis Attach

Back 56

Superior- Transverse processes of C4-C6. Inferior- Ribs 3-6.

Front 57

Erector Spinae-Illiocostalis Cervicis Innervation

Back 57

Dorsal Rami at corresponding levels.

Front 58

Erector Spinae-Illiocostalis Cervicis Action

Back 58

"Extension, lateral flexion of the vertebral column."

Front 59

Transversospinalis- Semispinalis Capitus Attach

Back 59

Superior- Between superior and inferior nuchal lines. Inferior- Transverse processes of C4-T7

Front 60

Transversospinalis- Semispinalis Capitus Innervation

Back 60

Greater Occipital Nerve

Front 61

Transversospinalis- Semispinalis Capitus Action

Back 61

Extends and Rotates the head.

Front 62

Transversospinalis- Multifidus Attach

Back 62

"spans 2-4 vertebrae. Very short and small, but gets longer as you go down."

Front 63

Transversospinalis- Multifidus Innervation

Back 63

Dorsal Rami at corresponding levels.

Front 64

Transversospinalis- Multifidus Action

Back 64

Stabilizes vertebrae in local movements of vertebral column

Front 65

Transversospinalis- Rotatores Attach

Back 65

Span 1-2 Vertebrae

Front 66

Transversospinalis- Rotatores Innervation

Back 66

Dorsal Rami at corresponding levels.

Front 67

Transversospinalis- Rotatores Action

Back 67

Stabilize Vertebrae

Front 68

Interspinales Attach

Back 68

Placed in pairs between each spinous process.

Front 69

Interspinales Innervation

Back 69

Dorsal Rami at corresponding levels.

Front 70

Interspinales Action

Back 70

Extend Vertebral Column

Front 71

Levatores Costarum Attach

Back 71

"Attach to the transverse processes of C7 to T12 Vertebrae, and to the superior surfaces of the ribs immediately inferior to the preceding vertebrae."

Front 72

Levatores Costarum Innervation

Back 72

Dorsal Rami C8-T11

Front 73

Levatores Costarum Action

Back 73

Elevates Ribs

Front 74

Intertransversarii Attach

Back 74

Small muscles placed between the transverse processes of the vertebrae.

Front 75

Intertransversarii Innervation

Back 75

Dorsal Rami at corresponding levels.

Front 76

Intertransversarii Action

Back 76

Lateral Flexion of the Vertebral Column

Front 77

What are the muscles of the suboccipital triangle?

Back 77

Rectus Capitus Posterior Major (superior boundry of the suboccipital triangle); Obliquus Capitis Inferior (inferior boundry of the suboccipital triangle); Obliquus Capitis Superior (lateral boundry of the suboccipital triangle)

Front 78

Rectus Capitus Posterior Major Attach

Back 78

attaches to the lateral portion of the nuchal line and the spinous process of axis.

Front 79

Rectus Capitus Posterior Major Innervation

Back 79

Suboccipital Nerve

Front 80

Rectus Capitus Posterior Major Action

Back 80

Extends and Rotates the head.

Front 81

Rectus Capitus Posterior Minor Attach

Back 81

attaches to the medial portion of the nuchal line and the posterior arch of atlas.

Front 82

Rectus Capitus Posterior Minor Innervation

Back 82

Suboccipital Nerve

Front 83

Rectus Capitus Posterior Minor Action

Back 83

Extends the Head

Front 84

Obliquus Capitis Inferior Attach

Back 84

attaches to the transverse process of atlas (C1) and to the spinous process of axis (C2).

Front 85

Obliquus Capitis Inferior Innervation

Back 85

Suboccipital Nerve

Front 86

Obliquus Capitis Inferior Action

Back 86

Rotates the Head

Front 87

Obliquus Capitis Superior Attach

Back 87

Attaches to the occipital bone between the nuchal lines and to the transverse process of atlas.

Front 88

Obliquus Capitis Superior Innervation

Back 88

Suboccipital Nerve

Front 89

Obliquus Capitis Superior Action

Back 89

Extends and bends the head laterally