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Muscles > Scapula to humerus > Flashcards

Scapula to humerus Flashcards

1
Q

deltoid *: Origin

A

clavicle, acromion, spine of the scapula

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2
Q

deltoid *: Insertion

A

deltoid tuberosity of humerus

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3
Q

deltoid *: Nerve

A

Axillary nerve

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4
Q

deltoid *: Action

A

shoulder abduction, flexion and extension

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5
Q

supraspinatus*: Origin

A

supraspinous fossa of scapula

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6
Q

supraspinatus*: Insertion

A

superior facet of greater tubercle of humerus

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7
Q

supraspinatus*: Nerve

A

suprascapular nerve

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8
Q

supraspinatus*: Action

A

abduction of arm and stabilizes humerus

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9
Q

infraspinatus*: Origin

A

infraspinous fossa of the scapula

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10
Q

infraspinatus*: Insertion

A

middle facet of greater tubercle of the humerus

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11
Q

infraspinatus*: Nerve

A

suprascapular nerve

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12
Q

infraspinatus*: Action

A

Lateral rotation of arm & Adduction of arm and stabilizes humerus

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13
Q

teres major*: Origin

A

posterior aspect of the inferior angle of the scapula

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14
Q

teres major*: Insertion

A

medial lip of the intertubercular sulcus of the humerus

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15
Q

teres major*: Nerve

A

Lower subscapular nerve (segmental levels C5 and C6)

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16
Q

teres major*: Action

A

Internal rotation of the humerus

17
Q

teres minor*: Origin

A

lateral border of the scapula

18
Q

teres minor*: Insertion

A

inferior facet of greater tubercle of the humerus

19
Q

teres minor*: Nerve

A

axillary nerve

20
Q

teres minor*: Action

A

laterally rotates and adducts the arm

21
Q

subscapularis*: Origin

A

subscapular fossa

22
Q

subscapularis*: Insertion

A

lesser tubercle of humerus

23
Q

subscapularis*: Nerve

A

upper subscapular nerve, lower subscapular nerve (C5, C6

24
Q

subscapularis*: Action

A

rotates medially humerus; stabilizes shoulder

Muscles (11 decks)

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