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Anatomy (711) > Scapula Muscles > Flashcards

Scapula Muscles Flashcards

1
Q

what movements happen at the scapula?

A 
elevation
depression
protraction
retraction
rotate to elevate glenoid
rotate to deoress glenoid
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2
Q

how can you tell if a muscle will elevate the scapula?

A

proximal attachment is superior to the distal attachment

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3
Q

how can you tell if a muscle will protract the scapula?

A

muscle is on the anterior side of the scapula

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4
Q

how can you tell if a muscle will retract the scapula?

A

muscle is on the posterior side of the scapula

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5
Q

name the 5 muscles that move the scapula to fix it in place so that you can use your arm/hand to reach

A 
serratus anterior
rhomboids
traps
pec minor
levator scapulae
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6
Q

pec minor proximal attachment

A

ribs 3-5

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7
Q

pec minor distal attachment

A

coracoid process

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8
Q

pec minor actions

A

protract, depress, rotate to depress

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9
Q

pec minor innervations

A

medial pectoral nerve (C8,T1) and some fibers from lateral pectoral nerve

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10
Q

subclavius proximal attachment

A

rib 1

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11
Q

subclavius distal attachment

A

clavicle

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12
Q

subclavius actions

A

depress scapula; anchor and depress clavicle

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13
Q

subclavius innervations

A

nerve to subclavius (C5,C6)

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14
Q

serratus anterior proximal attachment

A

lateral superior ribs

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15
Q

serratus anterior distal attachment

A

medial border of scapula

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16
Q

serratus anterior actions

A

protract, depress, rotate to elevate

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17
Q

serratus anterior innervations

A

long thoracic nerve (C5,C6,C7)

18
Q

upper trap proximal attachment

A

occipital protuberance and nuchal ligament (C1-C7 spinous processes)

19
Q

upper trap distal attachment

A

clavicle, acromion, spine of scapula

20
Q

upper trap actions (at the scapula)

A

elevate, retract, rotate to elevate

21
Q

upper trap actions (at the cervical region)

A

bilateral extension; unilateral ABD, ADD, and rotation

22
Q

upper trap innervations

A

CN XI (spinal accessory)

23
Q

lower trap proximal attachment

A

C7-T12 spinous processes

24
Q

lower trap distal attachment

A

clavicle, acromion, spine of scapula

25
Q

lower trap actions

A

depression, retraction, rotate to elevate

26
Q

lower trap innervations

A

CN XI (spinal accessory)

27
Q

levator scapulae proximal attachment

A

upper cervical vertebrae

28
Q

levator scapulae distal attachment

A

superior medial scapula

29
Q

levator scapulae actions (at the scapula)

A

elevation, rotate to depress, helps with retraction

30
Q

levator scapulae actions (at the cervical region)

A

bilateral extension; unilateral ABD, ADD, and rotation

31
Q

levator scapulae innervations

A

dorsal scapular nerve (C4,C5)

32
Q

rhomboids proximal attachment

A

lower cervical and upper thoracic vertebrae

33
Q

rhomboids distal attachment

A

medial border of scapula

34
Q

rhomboids actions

A

elevation, retraction, rotate to depress

35
Q

rhomboids innervations

A

dorsal scapular nerve (C4,C5)

36
Q

what muscles elevate the scapula? (URL)

A

Upper trap
Rhomboids
Levator scapulae

37
Q

what muscles depress the scapula? (PSL)

A

Pec minor
Serratus anterior
Lower trap

38
Q

what muscles protract the scapula? (PS)

A

Pec minor
Serratus anterior
*both of these muscles attach proximally at the anterior/lateral ribs

39
Q

what muscles retract the scapula? (RULL)

A

Rhomboids
Upper trap
Lower trap
Levator scapulae (helps w retraction)

40
Q

what muscles rotate to elevate the glenoid? (LSU)

A

Lower trap
Serratus anterior
Upper trap

41
Q

what muscles rotate to depress the glenoid? (PRL)

A

Pec minor
Rhomboids
Levator scapulae

Anatomy (711) (62 decks)

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