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Uncategorized > Anatomy Back and Shoulder Muscles > Flashcards

Anatomy Back and Shoulder Muscles Flashcards

1
Q

Trapezius Lateral Attachments

A

Lateral 1/3 of the Clavicle
Acromion
Spine of Scapula (medial end, inferior border)

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2
Q

Trapezius Action

A

Scapula: Rotation, Retraction, Elevation, Depression
Clavicle: Levitates
Neck: Extension
Shoulder Joint: Stabilization

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3
Q

Trapezius Innervation

A

Efferent: Accessory Nerve (CN11)
Afferent: Branches of Cervical Plexus
Anterior Rami of Spinal Nerve C3 & C4

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4
Q

Trapezius Blood Supply

A

Transverse Cervical Artery

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5
Q

Latissimus Dorsi Medial Attachment

A

Spinous Processes of T7-T12
Thoracolumbar Fascia
Iliac Crest of the Ilium
Ribs 9-12 lateral to their angle

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6
Q

Latissimus Dorsi Lateral Attachment

A

Floor of the intertubecular sulcus on the anterior side of the humerus
(sometimes, the inferior angle of the scapula)

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7
Q

Latissimus Dorsi Action

A

Medial Rotation
Extension
Adduction
Also helps with respiration

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8
Q

Latissimus Dorsi Innervation

A

Thoracodorsal Nerve (on the anterior surface next to its lateral attachment)

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9
Q

Latissimus Dorsi Blood Supply

A

Thoracodorsal Artery (on the anterior surface near its lateral attachment)

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10
Q

Rhomboid Major Medial Attachments

A

Spinous Processes of T2-T5

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11
Q

Rhomboid Major Lateral Attachments

A

Medial Border of the Scapula below the level of the spine of the scapula

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12
Q

Rhomboid Major Action

A

Retracts Scapula
Rotates Scapula to depress the glenoid cavity
Hold close to the thoracic wall

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13
Q

Rhomboid Major Innervation

A

Dorsal Scapular Nerve (courses parallel to the medial border of the scapula)

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14
Q

Rhomboid Major Blood Supply

A

Dorsal Scapular Artery (branches directly from subclavian)
(Potentially arterial supply could branch from transverse cervical artery, therefore the artery for this muscle would be the deep branch of the transverse cervical artery)

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15
Q

Rhomboid Minor Medial Attachment

A

Spinous Processes of C7-T1

Nuchal Ligament

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16
Q

Rhomboid Minor Lateral Attachment

A

Medial Border of the Scapula at the level of the spine of the scapula

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17
Q

Rhomboid Minor Action

A

Retracts the Scapula
Rotates the scapula to depress the glenoid cavity
hold the scapula close to the thoracic wall

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18
Q

Rhomboid Minor Innervation

A

Dorsal Scapular Nerve (courses parallel to the medial border of the scapula)

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19
Q

Rhomboid Minor Blood Supply

A

Dorsal Scapular Artery (may branch directly from subclavian)
(if arterial supply branches from transverse cervical artery, than arterial supply will be from the deep branch of the transverse cervical artery)

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20
Q

Levator Scapulae Superior Attachment

A

Transverse Processes of the upper cervical vertebrae ( C1-C4)

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21
Q

Levator Scapulae Inferior Attachment

A

Superior Angle of the Scapula

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22
Q

Levator Scapulae Action

A

Elevates the Scapula

Rotates the scapula to depress the glenoid cavity

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23
Q

Levator Scapulae Innervation

A

Dorsal Scapular Nerve (passes anterior to the inferior end and deep to muscle)

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24
Q

Levator Scapulae Blood Supply

A

Dorsal Scapular Artery (pass anterior to the inferior end and deep to the muscle)

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25
Q

Serratus Posterior Superior Medial Attachment

A

Nuchal Ligament

Spinous Processes of C7-T3

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26
Q

Serratus Posterior Superior Lateral Attachments

A

Superior borders of ribs 2-5 lateral to their angles

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27
Q

Serratus Posterior Superior Action

A

Respiratory Muscle (elevates the upper ribs)

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28
Q

Serratus Posterior Superior Innervation

A

intercostal nerves (T1-T5)

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29
Q

Serratus Posterior Superior Blood Supply

A

Intercostal Arteries

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30
Q

Serratus Posterior Inferior Medial Attachment

A

Spinous Processes of T11-L2

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31
Q

Serratus Posterior Inferior Lateral Attachments

A

Inferior Border of Ribs 9-12 lateral to their angles

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32
Q

Serratus Posterior Inferior Action

A

Respiratory Muscle

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33
Q

Serratus Posterior Inferior Innervation

A

Intercostal Nerves

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34
Q

Serratus Posterior Inferior Blood Supply

A

Intercostal arteries

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35
Q

Splenius Capitis Superior Attachment

A

Mastoid Process

Superior nuchal ligament of occipital bone

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36
Q

Splenius capitis inferior attachment

A

nuchal ligament

spinous processes of vertebrae C7-T6

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37
Q

Splenius Capitis Action

A

Supports Head in Erect Position
Extension of head
Lateral Flexion of Head
Ipsilateral Rotation of head

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38
Q

Splenius Capitis Innervation

A

Dorsal Rami of spinal nerves C1-C6

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39
Q

Splenius Capitis Blood Supply

A

Occipital Artery

Transverse Cervical Artery

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40
Q

Splenius Cervicis Superior Attachment

A

Transverse Processes of vertebrae C1-C4

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41
Q

Splenius Cervicis Inferior Attachments

A

Nuchal Ligament

Spinous Processes of C7-T6

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42
Q

Splenius Cervicis Action

A

Supports head in Erect position
Extension of head
Lateral Flexion of head
Ipsilateral Rotation of head

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43
Q

Splenius Cervicis Innervation

A

Dorsal Rami of spinal nerves C1-C6

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44
Q

Splenius Cervicis Blood Supply

A

Occipital Artery

Transverse Cervical Artery

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45
Q

Spinalis

A

comprised of 3 regions
Cervical
Thoracic
Lumbar

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46
Q

Spinalis Superior Attachment

A

spinous processes

47
Q

Spinalis Inferior Attachments

A

spinous processes

48
Q

Spinalis Action

A

Extension of the head and spine

Lateral Flexion of the spine

49
Q

Spinalis Innervation

A

Dorsal Rami for upper cervical nerves

50
Q

Spinalis Blood Supply

A

Posterior Intercostal Arteries

51
Q

Longissimus Superior Attachments

A

Mastoid Process

Transverse Processes of thoracic and cervical vertebrae

52
Q

Longissimus Inferior Attachment

A

Sacrum

53
Q

Longissimus Action

A

Extension of the head and spine

Lateral Flexion of the spine

54
Q

Longissimus Innervation

A

Dorsal Primary Rami of the thoracic, lumber, and middle to lower cervical spinal nerves

55
Q

Longissimus Blood Supply

A

Posterior Intercostal arteries
occipital artery
subcostal arteries
lumbar arteries

56
Q

What muscles make up the Erector Spinae?

A

Spinalis, Longissimus, Iliocostalis

57
Q

Iliocostalis Superior Attachment

A

Ribs

58
Q

Iliocostalis Inferior Attachment

A

Ilium (iliac crest)

59
Q

Iliocostalis action

A

extension of the vertebral column

Lateral flexion of the spine

60
Q

Iliocostalis Innervarion

A

Dorsal Primary Rami of the spinal nerves for thoracic, upper lumbar nerves, and C8

61
Q

Iliocostalis Blood Supply

A

Posterior Intercostal Arteries
Subcostal Arteries
Occipital Artery
Lumbar Arteries

62
Q

What muscles make up the superficial muscles of the back?

A

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

63
Q

What muscles make up the intermediate muscles of the back?

A

Serratus Posterior Superior

Serratus Posterior Inferior

64
Q

What muscles make up the deep muscles of the back?

A

Splenius Capitis and cervicis, semispinalis capitis and cevicis, erector spinae (spinalis, longissimus, iliocostalis)

65
Q

Multifundus Attachments

A

Transverse and Spinous Processes of vertebra

66
Q

Multifundus Action

A

Rotational and Lateral bending movements between adjacent vertebrae and act to stabilize vertebral column

67
Q

Multifundus Innervation

A

Posterior branches

68
Q

Multifundus Blood Supply

A 
Vertebral Artery 
Occipital Artery
Posterior Intercostal Arteries
Lumbar Arteries 
Lateral Sacral Arteries
69
Q

Rotatores Attachments

A

Transverse and Spinous Processes of Vertebrae

70
Q

Rotatores Action

A

Rotational and Lateral bending movements between adjacent vertebrae and act to stabilize the vertebral column

71
Q

Rotatores Innervation

A

cervical, thoracic, and spinal nerves (posterior branch)

72
Q

Rotatores Blood Supply

A

Vertebral Artery
Occipital Artery
Posterior Intercostal Artery

73
Q

Semispinalis Capitis Superior Attachment

A

Occipital bone between superior and inferior nuchal lines

74
Q

Semispinalis Capitis Inferior Attachment

A

transverse processes of the upper thoracic vertebrae

75
Q

Semispinalis Capitis Action

A

Rotational and Lateral bending movements between adjacent vertebrae and act to stabilize vertebral column

76
Q

Semispinalis Capitis Innervation

A

Dorsal Rami of Spinal Nerves

77
Q

Semispinalis capitis blood supply

A

deep cervical artery

descending branch of the occipital artery

78
Q

Semispinalis Cervicis Attachments

A

transverse and spinous processes of vertebrae

79
Q

Semispinalis Cervicis Action

A

Extension of the Spine and Head
Lateral Flexion of the head
Contralateral Rotating of the head

80
Q

Semispinalis Cervicis Innervation

A

Dorsal Rami of Spinal Nerves

81
Q

Semispinalis Cervicis Blood Supply

A

Deep Cervical Artery

Descending Branch of the Occipital Artery

82
Q

Deltoid Proximal Attachment

A

Spine of Scapula
Lateral 1/3 of the Clavicle
Acromion

83
Q

Deltoid Distal Attachment

A

Deltoid Tuberosity of the humerus

84
Q

Deltoid Action

A

Abducts the humerus

85
Q

Deltoid Innervation

A

Axillary Nerve (deep the muscle)

86
Q

Deltoid Blood Supply

A

Posterior Circumflex Humeral Artery

87
Q

Supraspinatus Medial Attachment

A

Supraspinous fossa of the scapula

88
Q

Supraspinatus Lateral Attachment

A

highest facet of the greater tubercle of the humerus

89
Q

Supraspinatus Action

A

initiates abduction of the humerus

90
Q

Supraspinatus Innervation

A

Suprascapular Nerve (C5, C6)

91
Q

Supraspinatus Blood Supply

A

Suprascapular Artery

92
Q

Infraspinatus Medial Attachment

A

Infraspinous Fossa

93
Q

Infraspinatus Lateral Attachment

A

Middle Facet of the greater tubercle of the humerus

94
Q

Infraspinatus Action

A

Laterally rotates the humerus

95
Q

Infraspinatus Innervation

A

suprascapular nerve (C5, C6)

96
Q

Infraspinatus Blood Supply

A

Suprascapular artery

circumflex scapular artery

97
Q

Teres Minor Medial Attachment

A

Lateral border of the scapula

98
Q

Teres Minor Lateral Attachment

A

Inferior facet of the greater tubercle of the humerus

99
Q

Teres Minor Action

A

Laterally Rotates the Humerus

100
Q

Teres Minor Innervation

A

Axillary Nerve (C5, C6)

101
Q

Teres Minor Blood Supply

A

Circumflex scapular artery

102
Q

Teres Major Medial Attachment

A

inferior angle of the scapula

103
Q

Teres Major Lateral Attachment

A

Medial Lip of the intertubercular sulcus of the humerus

104
Q

Teres Major Action

A

Adducts and medially rotates the humerus

105
Q

Teres Major Innervation

A

Lower Scapular nerve (C5, C6)

106
Q

Teres Major Blood Supply

A

Circumflex Scapular Artery

107
Q

What artery and nerve passes through the quandrangular space?

A

Axillary Nerve and Circumflex Humeral Artery

108
Q

What are the borders of the Quadrangular Space?

A

Superior: Inferior border of Teres Minor
Lateral: Surgical Neck of the Humerus
Inferior: Superior border of Teres Major
Medial: Long head of the triceps brachii

109
Q

What is the location of the triceps brachii muscle?

A

Anterior to Teres Minor
Posterior to Teres Major
Medial to Axillary Never and Posterior Humeral Circumflex Artery

110
Q

What are the borders of the Triangular Space?

A

Superior: Inferior border of teres minor
Inferior: superior border of teres major
Lateral: medial border of the long head of the triceps brachii

111
Q

What artery is found deep within the triangular space?

A

Circumflex Scapular Artery

112
Q

What is the orientation of the Suprascapular Nerve and Artery?

A

There is a transverse ligament that passes over the suprascapular notch.
the artery passes over the ligament
the nerve passes under the ligament

113
Q

What are the rotator cuff muscles?

A

Teres Minor
Infraspinatus
Supraspinatus
Subscapularis

114
Q

Trapezius Medial Attachments

A

External Occipital Protuberance
Nuchal Ligament
Spinous Processes of C7-T12

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