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Upper Limb > Intrinsic Shoulder > Flashcards

Intrinsic Shoulder Flashcards

1
Q

What muscles make up the intrinsic shoulder?

A 
Deltoid
Teres major
Teres minor
Subscapularis 
Supraspinatus
Infraspinatus
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2
Q

What is the origin of deltoid?

A

Scapula

Clavicle

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3
Q

What is the insertion of deltoid?

A

Deltoid tuberosity - deltoid

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4
Q

What is the action of deltoid?

A

Anterior fibres - flex + medial rotation

Posterior fibres - extend + lateral rotation

Middle fibres - abduct

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5
Q

What is the innervation of deltoid?

A

Axillary nerve

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6
Q

What is the origin of teres major?

A

Posterior inferior scapula

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7
Q

What is the insertion of teres major?

A

Intertubecular groove

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8
Q

What is the action of teres major?

A

Adduct

Medial rotation

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9
Q

What is the innervation of teres major?

A

Lower subscapular nerve

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10
Q

What is the origin of teres minor?

A

Posterior scapula

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11
Q

What is the insertion of teres minor?

A

Greater tubercle

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12
Q

What is the action of teres minor?

A

Lateral rotation

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13
Q

What is the innervation of teres minor?

A

Axillary nerve

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14
Q

What is the origin of subscapularis?

A

Subscapular fossa - scapula

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15
Q

What is the insertion of subscapularis?

A

Lesser tubercle

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16
Q

What is the action of subscapularis?

A

Medial rotation

17
Q

What is the innervation of subscapularis?

A

Upper + lower subscapular nerves

18
Q

What is the origin of supraspinatus?

A

Supraspinatus fossa - scapula

19
Q

What is the insertion of supraspinatus?

A

Greater tubercle

20
Q

What is the action of supraspinatus?

A

Abduct 0-15 degrees

21
Q

What is the innervation of supraspinatus?

A

Suprascapular nerve

22
Q

What is the origin of infraspinatus?

A

Infraspinous fossa - scapula

23
Q

What is the insertion of infraspinatus?

A

Greater tubercle

24
Q

What is the action of infraspinatus?

A

Lateral rotation

25
Q

What is the innervation of infraspinatus?

A

Suprascapular nerve

Upper Limb (12 decks)

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