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Clinical Anatomy I > Scapular Muscles > Flashcards

Scapular Muscles Flashcards

1
Q

Deltoid (attachments)

A

From the clavicle, acromion & spine of scapula to the deltoid tuberosity of the humerus

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2
Q

Deltoid (actions)

A

Anterior: flexion & IR
Middle: abduction
Posterior: extension, ER, horizontal extension

Of humerus

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3
Q

Deltoid (innervation)

A

Axillary n. (C5-6)

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4
Q

Supraspinatus (attachments)

A

From the medial 2/3 of supraspinous fossa to the superior facet of greater tubercle of humerus & shoulder joint capsule

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5
Q

Supraspinatus (actions)

A

Initiates humeral abduction & laterally rotates humerus; stabilizes GH joint (reinforces superior aspect of joint capsule)

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6
Q

Supraspinatus (innervation)

A

Suprascapular n. (C4-6)

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7
Q

Infraspinatus (attachments)

A

From the medial 2/3 of infraspinous fossa to the middle facet of the greater tubercle of humerus & to shoulder joint capsule

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8
Q

Infraspinatus (actions)

A

ER of humerus; stabilizes GH joint

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9
Q

Infraspinatus (innervation)

A

Suprascapular n. (C5-6)

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10
Q

Teres Minor (attachments)

A

From upper 2/3 of dorsal surface of lateral border of scapula to inferior facet of greater tubercle of humerus & to shoulder joint capsule

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11
Q

Teres Minor (actions)

A

ER of humerus; stabilizes GH joint

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12
Q

Teres Minor (innervation)

A

Axillary n. (C5-6)

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13
Q

Subscapularis (attachments)

A

From subscapular fossa to lesser tubercle of humerus

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14
Q

Subscapularis (actions)

A

IR of humerus; stabilizes GH joint

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15
Q

Subscapularis (innervation)

A

Upper & lower subscapular n. (C5-6)

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16
Q

Teres Major (attachments)

A

From dorsal surface of inferior angle scapula & lower 1/3 of lateral border of scapula to medial lip of intertubercular sulcus of humerus

17
Q

Teres Major (actions)

A

Humeral adduction, IR & extension

18
Q

Teres Major (innervation)

A

Lower subscapular n. (C5-6)

Clinical Anatomy I (12 decks)

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