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Muscles of back/upper extremity > BLOCK 1 BACK/ARM FINAL > Flashcards

BLOCK 1 BACK/ARM FINAL Flashcards

1
Q

Trapezius attachments

A

P: external occipital protuberance, nuchal ligament, spinous C7-T12
D: lateral 1/3 clavicle, acromion and spine of scapula

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2
Q

Trapezius innervation

A

CN XI

sensory: ventral rami C3, C4

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3
Q

Trapezius blood supply

A

superficial branch of transverse cervical artery

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4
Q

Latissimus dorsi attachments

A

P: spinous T7-T12, thoracolumbar fascia, iliac crest, ribs 9-12
D: intertubercular sulcus of humerus

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5
Q

Trapezius actions

A

elevate/depress scapula, retract and rotate glenoid cavity superiorly

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6
Q

Latissimus dorsi innervation

A

thoracodorsal nerve

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7
Q

Latissimus dorsi blood supply

A

thoracodorsal nerve (C6, C7, C8)

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8
Q

Latissimus dorsi actions

A

extends, adducts, medially rotates humerus, elevates body

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9
Q

Rhomboid minor attachments

A

P: spinous C (6, 7)
D: medial border of scapula

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10
Q

Rhomboid major attachments

A

P: spinous T (1-4)
D: medial border of scapula

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11
Q

Rhomboid minor innervation

A

dorsal scapular nerve (C5)

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12
Q

Rhomboid minor blood supply

A

dorsal scapular artery

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13
Q

Rhomboid minor actions

A

retracts and inferiorly rotates scapula

connects scapula to spinal column

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14
Q

Rhomboid major actions

A

retracts and inferiorly rotates scapula

connects scapula to spinal column

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15
Q

Rhomboid minor innervation

A

dorsal scapular nerve (C5)

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16
Q

Rhomboid minor blood supply

A

dorsal scapular artery (C5)

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17
Q

Levator scapulae attachments

A

P: transverse processes C (1-4)
D: superior angle of scapula

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18
Q

Levator scapulae actions

A

elevates and rotates scapula

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19
Q

Levator scapulae innervation

A

dorsal scapular nerve (C5)

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20
Q

Levator scapulae blood supply

A

dorsal scapular artery

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21
Q

Serratus posterior superior attachments

A

P: spinous C, T (C7-T3)
D: superior border ribs 2-5

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22
Q

Serratus posterior superior actions

A

elevates ribs, assists forced inspiration

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23
Q

Serratus posterior superior innervation

A

ventral rami of intercostal nerves T2-T5

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24
Q

Serratus posterior superior blood supply

A

intercostal arteries

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25
Q

Serratus posterior inferior attachments

A

P: spinous T, L (T11-L2)
D: inferior border ribs 9-12

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26
Q

Serratus posterior inferior actions

A

elevates ribs, assists forced expiration

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27
Q

Serratus posterior inferior innervation

A

ventral rami of intercostal nerves T9-T12

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28
Q

Serratus posterior inferior blood supply

A

intercostal arteries

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29
Q

Splenius cervicis attachments

A

P: spinous C7-T3, lower nuchal ligament
D: tubercles of transverse processes C1-C3 (meets suboccipital triangle mm.)

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30
Q

Splenius cervicis actions

A

alone: rotates ipsilaterally
together: extend head and neck

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31
Q

Splenius cervicis innervation

A

dorsal rami of spinal nerves

32
Q

Splenius capitis attachments

A

P: spinous C7-T3, lower nuchal ligament
D: mastoid process, lateral 1/3 superior nuchal line

33
Q

Splenius capitis actions

A

alone: rotates ipsilaterally
together: extend head and neck

34
Q

Splenius capitis innervation

A

dorsal rami of spinal nerves

35
Q

Erector spinae attachments

A 
P: spinalis @ spinous processes
longissimus @ sacrum
iliocostalis @ sacrum, iliac crest
D: spinalis @ spinous processes
longissimus + iliocostalis @ transverse processes
36
Q

Erector spinae actions

A

alone: laterally flex vertebral column ipsilaterally
together: extend vertebral column and head

37
Q

Erector spinae innervation

A

dorsal rami of spinal nerves

38
Q

Spinalis blood supply

A

lateral sacral artery

39
Q

Longissimus blood supply

A

lateral sacral artery

40
Q

Iliocostalis blood supply

A

intercostal and lumbar arteries

41
Q

Transversospinalis attachments

A

P: transverse processes
D: spinous processes

42
Q

Semispinalis attachments

A

P: transverse processes C, T (C4-T12)
D: capitis @ occipital bone
cervicis @ spinous C, T

43
Q

Semispinalis actions

A

extend and contralaterally rotate head and C, T region of vertebral column

44
Q

Semispinalis innervation

A

greater occipital nerve = dorsal rami of C2

45
Q

Transversospinalis innervation

A

dorsal rami of spinal nerves

46
Q

Multifidus attachments

A

P: transverse processes T1-T3, articular processes C4-C7…
D: spinous processes C2-L5

47
Q

Rectus capitis posterior major attachments

A

P: spinous C2
D: inferior nuchal line

48
Q

Suboccipital triangle mm. innervation

A

suboccipital nerve = dorsal rami of C1

49
Q

Rectus capitis posterior minor attachments

A

P: posterior tubercle of C1
D: inferior nuchal line

50
Q

Suboccipital triangle mm. actions

A

extend/laterally flex head AND

rotate head at atlanto-occipital joint

51
Q

Obliquus capitis inferior attachments

A

P: spinous C2
D: transverse C1

52
Q

Obliquus capitis superior attachments

A

P: transverse C1
D: b/w superior and inferior nuchal lines

53
Q

Deltoid attachments

A

P: lateral 1/3 clavicle, acromion and spine of scapula
D: deltoid tuberosity of humerus

54
Q

Deltoid actions

A

laterally/medially rotate arm, abduct, flex

55
Q

Deltoid blood supply

A

posterior circumflex humeral artery

also: anterior circumflex humeral a., profunda brachii a., deltoid branch of thoracoacromial a.

56
Q

Deltoid innervation

A

axillary nerve (C5, C6)

57
Q

Teres minor attachments

A

P: lateral border of scapula
D: greater tubercle of humerus

58
Q

Teres minor actions

A

act with rotator cuff

laterally rotate arm

59
Q

Teres minor innervation

A

axillary nerve (C5, C6)

60
Q

Teres minor blood supply

A

lateral circumflex humeral artery and circumflex scapular artery

61
Q

Teres major attachments

A

P: inferior angle of scapula
D: intertubercular sulcus of humerus

62
Q

Teres major actions

A

adducts and medially rotates arm

63
Q

Teres major blood supply

A

thoracodorsal artery

64
Q

Teres major innervation

A

lower subscapular nerve (C5, C6)

65
Q

Supraspinatus attachments

A

P: supraspinous fossa
D: greater tubercle of humerus

66
Q

Supraspinatus actions

A

act with rotator cuff

initiate abduction first 15 degrees

67
Q

Supraspinatus innervation

A

suprascapular nerve (C5, C6)

68
Q

Supraspinatus blood supply

A

suprascapular artery

69
Q

Infraspinatus attachments

A

P: infraspinous fossa
D: greater tubercle of humerus

70
Q

Infraspinatus actions

A

act with rotator cuff

laterally rotate arm

71
Q

Infraspinatus innervation

A

suprascapular nerve (C5, C6)

72
Q

Infraspinatus blood supply

A

suprascapular artery

73
Q

Subscapularis attachments

A

P: subscapular fossa
D: lesser tubercle of humerus

74
Q

Subscapularis innervation

A

upper and lower subscapular nerves (C5, C6)

75
Q

Subscapularis blood supply

A

subscapular artery

76
Q

Subscapularis actions

A

act with rotator cuff

medially rotate arm, hold humeral head in glenoid cavity

Muscles of back/upper extremity (12 decks)

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