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

BLOCK 1 BACK/ARM FINAL Flashcards

(76 cards)

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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
Serratus posterior inferior attachments
P: spinous T, L (T11-L2) D: inferior border ribs 9-12
26
Serratus posterior inferior actions
elevates ribs, assists forced expiration
27
Serratus posterior inferior innervation
ventral rami of intercostal nerves T9-T12
28
Serratus posterior inferior blood supply
intercostal arteries
29
Splenius cervicis attachments
P: spinous C7-T3, lower nuchal ligament D: tubercles of transverse processes C1-C3 (meets suboccipital triangle mm.)
30
Splenius cervicis actions
alone: rotates ipsilaterally together: extend head and neck
31
Splenius cervicis innervation
dorsal rami of spinal nerves
32
Splenius capitis attachments
P: spinous C7-T3, lower nuchal ligament D: mastoid process, lateral 1/3 superior nuchal line
33
Splenius capitis actions
alone: rotates ipsilaterally together: extend head and neck
34
Splenius capitis innervation
dorsal rami of spinal nerves
35
Erector spinae attachments
``` P: spinalis @ spinous processes longissimus @ sacrum iliocostalis @ sacrum, iliac crest D: spinalis @ spinous processes longissimus + iliocostalis @ transverse processes ```
36
Erector spinae actions
alone: laterally flex vertebral column ipsilaterally together: extend vertebral column and head
37
Erector spinae innervation
dorsal rami of spinal nerves
38
Spinalis blood supply
lateral sacral artery
39
Longissimus blood supply
lateral sacral artery
40
Iliocostalis blood supply
intercostal and lumbar arteries
41
Transversospinalis attachments
P: transverse processes D: spinous processes
42
Semispinalis attachments
P: transverse processes C, T (C4-T12) D: capitis @ occipital bone cervicis @ spinous C, T
43
Semispinalis actions
extend and contralaterally rotate head and C, T region of vertebral column
44
Semispinalis innervation
greater occipital nerve = dorsal rami of C2
45
Transversospinalis innervation
dorsal rami of spinal nerves
46
Multifidus attachments
P: transverse processes T1-T3, articular processes C4-C7... D: spinous processes C2-L5
47
Rectus capitis posterior major attachments
P: spinous C2 D: inferior nuchal line
48
Suboccipital triangle mm. innervation
suboccipital nerve = dorsal rami of C1
49
Rectus capitis posterior minor attachments
P: posterior tubercle of C1 D: inferior nuchal line
50
Suboccipital triangle mm. actions
extend/laterally flex head AND | rotate head at atlanto-occipital joint
51
Obliquus capitis inferior attachments
P: spinous C2 D: transverse C1
52
Obliquus capitis superior attachments
P: transverse C1 D: b/w superior and inferior nuchal lines
53
Deltoid attachments
P: lateral 1/3 clavicle, acromion and spine of scapula D: deltoid tuberosity of humerus
54
Deltoid actions
laterally/medially rotate arm, abduct, flex
55
Deltoid blood supply
posterior circumflex humeral artery | also: anterior circumflex humeral a., profunda brachii a., deltoid branch of thoracoacromial a.
56
Deltoid innervation
axillary nerve (C5, C6)
57
Teres minor attachments
P: lateral border of scapula D: greater tubercle of humerus
58
Teres minor actions
act with rotator cuff | laterally rotate arm
59
Teres minor innervation
axillary nerve (C5, C6)
60
Teres minor blood supply
lateral circumflex humeral artery and circumflex scapular artery
61
Teres major attachments
P: inferior angle of scapula D: intertubercular sulcus of humerus
62
Teres major actions
adducts and medially rotates arm
63
Teres major blood supply
thoracodorsal artery
64
Teres major innervation
lower subscapular nerve (C5, C6)
65
Supraspinatus attachments
P: supraspinous fossa D: greater tubercle of humerus
66
Supraspinatus actions
act with rotator cuff | initiate abduction first 15 degrees
67
Supraspinatus innervation
suprascapular nerve (C5, C6)
68
Supraspinatus blood supply
suprascapular artery
69
Infraspinatus attachments
P: infraspinous fossa D: greater tubercle of humerus
70
Infraspinatus actions
act with rotator cuff | laterally rotate arm
71
Infraspinatus innervation
suprascapular nerve (C5, C6)
72
Infraspinatus blood supply
suprascapular artery
73
Subscapularis attachments
P: subscapular fossa D: lesser tubercle of humerus
74
Subscapularis innervation
upper and lower subscapular nerves (C5, C6)
75
Subscapularis blood supply
subscapular artery
76
Subscapularis actions
act with rotator cuff | medially rotate arm, hold humeral head in glenoid cavity

Muscles of back/upper extremity (12 decks)

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