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A&P 1 > Shoulder Muscles > Flashcards

Shoulder Muscles Flashcards

1
Q

Pectoralis minor origin?

A

anterior surface of ribs 3-5 (or 2-4)

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2
Q

Serratus anterior origin?

A

by series of muscle slips from ribs 1-9

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3
Q

Subclavius origin?

A

costal cartilage of rib 1

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4
Q

Trapezius origin?

A

occipital bone, ligamentum nuchae, spines of C7 - T12

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5
Q

Levator scapulae origin?

A

transverse processes of C1-C4

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6
Q

Rhomboid minor origin?

A

spinous processes of C7 & T1

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7
Q

Rhomboid major origin?

A

spinous processes of T2-T5

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8
Q

Pectoralis minor insertion?

A

coracoid process of scapula

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9
Q

Serratus anterior insertion?

A

anterior surface of vertebral border of scapula

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10
Q

Subclavius insertion?

A

groove on inferior surface of clavicle

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11
Q

Trapezius insertion?

A

spine & acromion of scapula, lateral 3rd of clavicle

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12
Q

Levator scapulae insertion?

A

medial border of scapula, superior to spine

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13
Q

Rhomboid minor insertion?

A

medial border of scapula

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14
Q

Rhomboid major insertion?

A

medial border of scapula

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15
Q

Pectoralis minor action?

A

draws scapula forward & downward (ribs fixed)

draws rib cage superiorly (scaupla fixed)

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16
Q

Serratus anterior action?

A

rotates scapula so it’s inferior angle moves laterally and upward

17
Q

Subclavius action?

A

Helps stabilize and depress pectoral girdle

18
Q

Trapezius action?

A

Stabilizes, raises, retracts, and rotates scapula

19
Q

Levator scapulae action?

A

elevates & adducts scapula

20
Q

Rhomboid minor action?

A

stablize scapula

21
Q

Rhomboid major action?

A

stablize scapula

22
Q

Pectoralis minor innervation?

A

Both pectoral nerves

23
Q

Serratus anterior innervation?

A

Long thoracic nerve

24
Q

Subclavius innervation?

A

Nerve to subclavius

25
Q

Trapezius innervation?

A

Accesory nerve

26
Q

Levator scapulae innervation?

A

Cervical spinal nerves & dorsal scapular nerve

27
Q

Rhomboid minor innervation?

A

Dorsal scapular nerve

28
Q

Rhomboid major innervation?

A

Dorsal scapular nerve

A&P 1 (9 decks)

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