Muscles of the Scapula Flashcards

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1
Q

Origin: Upper 8 or 9 Ribs
Insertion: Anterior medial border of the scapula

A

Serratus Anterior

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2
Q

What direction (plane) do most of the fibers of the serratus anterior run?

A

Transverse

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3
Q

Which joint actions do the serratus anterior contribute to?

A

protraction and retraction

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4
Q

When the serratus anterior shortens which directions will it pull the scapula?

A

forward/protraction

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5
Q

What might the serratus anterior do in the frontal plane?

A

Upward Rotation (Frontal Plane) by pulling the inferior angle forward and up

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6
Q

Joint the serratus anterior crosses:

A

scapula (shoulder girdle)

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7
Q

Origin: ribs 3, 4 and 5
insertion: coracoid process

A

pectoralis minor

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8
Q

What direction (plane) do the fibers of the pectoralis minor pull?

A

down

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9
Q

Joint the pectoralis minor crosses

A

scapula (shoulder girdle)

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10
Q

actions of the pectoralis minor:

A

depression, downward rotation, protraction, and anterior tipping

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11
Q

Origin: external occipital protuberance of the skull, spinous process c7 and t1-t12
Insertion: acromion process, spine of the scapula and lateral 1/3 of clavicle

A

trapezius

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12
Q

what joint actions occur in the upper trapezius?

A

upward rotation and elevation

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13
Q

which direction do the fibers of the upper trapezius pull?

A

up

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14
Q

what joint action occurs in the middle trapezius?

A

retraction

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15
Q

which direction do the fibers of the lower trapezius pull?

A

down

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16
Q

which joint action occurs in the lower trapezius?

A

depression (not downward rotation) and upward rotation

17
Q

Origin: Transverse process of C1-C4
Insertion: Superior medial border of scapula

A

levator scapulae

18
Q

What action does the name of the levator scapulae imply?

A

elevation

19
Q

joint that the elevator scapulae crosses:

A

scapulae

20
Q

actions of the elevator scapulae:

A

elevation and downward rotation

21
Q

Origin: Spinous processes of C7-T5
Insertion: Medial border of the scapula

A

Rhomboids

22
Q

Which joint action are the rhomboids contracting best at?

A

retraction

23
Q

If the rhomboids are lengthened in upward rotation, what joint action could they contribute to while shortening?

A

downward rotation

24
Q

joint the rhomboids cross:

A

scapula

25
Q

actions of the rhomboid:

A

retraction, downward rotation and elevation

26
Q

plane, muscles responsible and sample exercise:
scapula

elevation

A

frontal
upper trapezius, levator scapulae, rhomboids
shrugs

27
Q

plane, muscles responsible and sample exercise:
scapula

depression

A

frontal
lower trapezius, pectoralis minor
end of a dip, bottom of lat pull down, functional push up

28
Q

plane, muscles responsible and sample exercise:
scapula

downward rotation

A

frontal
pectoralis minor, levator scapulae, rhomboids
lat pull down, pull up

29
Q

plane, muscles responsible and sample exercise:
scapula

upward rotation

A

frontal
upper traps, lower traps, serratus anterior
overhead press, lateral raise

30
Q

plane, muscles responsible and sample exercise:
scapula

protraction

A

transverse
pectoralis minor, serratus anterior
bench press, push up and all pushing motion

31
Q

plane, muscles responsible and sample exercise:
scapula

retraction

A

transverse
middle traps, rhomboids
rowing and all pulling motions

32
Q

plane, muscles responsible and sample exercise:
scapula

anterior tipping

A

sagittal
pectoralis minor, levator scapulae, upper traps
end of shoulder extension

33
Q

plane, muscles responsible and sample exercise:
scapula

posterior tipping

A

sagittal
lower traps, serratus anterior
end of shoulder flexion